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TOEFL IELTS BNC: 1918 COCA: 688
Contents
  1. noun
    2. CENTRE
    SCIENCE
  2. verb
    3. Phrasal verb(s)
focusnoun [ C ]uk/ˈfəʊ.kəs/ us/ˈfoʊ.kəs/ plural focuses or formal foci

focus noun [ C ] CENTRE

C1 the main or central point of something, especially of attention or interest（尤指注意力或興趣的）中心，焦點

I think Dave likes to be the focus of attention.我覺得戴夫喜歡受人關注。
The main focus of interest at the fashion show was Christian Lacroix's outrageous evening wear.時裝表演上人們興趣的主要焦點是克裏斯琴‧拉克魯瓦那身奇特的晚裝。
The media focus on politicians' private lives inevitably switches the attention away from the real issues.媒體關注政客們的私生活，這必然將人們的注意力從實際問題上轉移開來。

More examples

Education is the current focus of public debate.

They have narrowed the focus of the investigation, to concentrate on younger adults.

What is the focus of your report?

The baby had become the focus of all her energies.

The focus of the inquiry was on faults in the company's safety procedures.

focus noun [ C ] SCIENCE

(in physics) the point where waves of light or sound that are moving towards each other meet（物理學中光波、聲波等的）焦點，聚光點

the focus of a lens透鏡的焦點
be in/out of focus

used to say that a photograph is clear/not clear（照片）清晰／模糊

focusverbuk/ˈfəʊ.kəs/ us/ˈfoʊ.kəs/ -s-

[ T ] If you focus a device such as a camera or microscope, you move a device on the lens so that you can see a clear picture.調節（照相機、顯微鏡等的）焦距

[ I or T ] If you focus your eyes, or if your eyes focus, you try to look directly at an object so that you can see it more clearly.（使）集中目光；（使）逐漸聚焦

When they first took the bandages off, she/her eyes couldn't focus properly (= she couldn't see clearly).他們最初把繃帶取下時，她的視線一片模糊。

Phrasal verb(s)

focus (sth) on sb/sth
TOEFL IELTS BNC: 1918 COCA: 688
focus

noun¹

 1special interest/attention興趣；注意ADJECTIVE | VERB + FOCUS | FOCUS + VERB | PREPOSITION | PHRASES ADJECTIVE➤central, main, major, primary, prime, principal, real中心點；主要焦點；重要之處；首要點；基本點；最主要之處；真正的焦點▸➤important, special重要的／特殊的焦點➤particular, specific特別的／具體的焦點▸➤greater, increased更為關注的焦點➤new, renewed新的／重新關注的焦點▸➤clear, intense, sharp, strong清楚的／備受關注的／清晰的／受到強烈關注的焦點◇The restructuring is designed to give a sharper focus on key markets.重組旨在更加注重發展各主要市場。➤narrow, tight狹隘的中心◇I found the focus of the debate too narrow.我發現這個辯論的中心過於狹隘。➤broad廣泛的中心➤exclusive, single, sole獨一無二的／唯一的／單一的焦點➤single-minded專一的焦點➤media媒體的焦點◇The media focus has now shifted onto something else.媒體的焦點現已轉到別的事情上了。➤mental心理焦點VERB + FOCUS➤act as, become, remain, serve as充當／成為／仍然是／作為焦點◇Cities have always acted as the principal focus of political life.城市總是擔當着政治生活的主要焦點。➤give sb/sth, provide (sb/sth with)使⋯注意；（為⋯）提供焦點➤have有中心◇The problem with your plan is that it doesn't have a clear focus.你的計劃存在的問題是沒有一個明確的中心。➤keep, maintain保持／維持焦點▸➤change, move, shift, switch改變／移動／轉移／轉換焦點◇The legal team tried to shift the focus onto the victim.法務小組盡力使焦點轉移到受害者身上。➤narrow, sharpen縮小焦點；使焦點清晰➤broaden, expand擴大焦點➤lose失去焦點➤lack缺乏中心▸➤bring sth into使⋯成為中心◇This case has brought the problem of drug abuse in schools into sharp focus.這個案件使得校園毒品問題成為高度關注的焦點。➤come into成為焦點◇The question of compensation comes into focus.賠償問題成了焦點。➤direct, place, put, turn將焦點轉向⋯；將焦點放在⋯；轉移焦點◇I've directed my focus towards / toward developing my skills.我已將重點轉到培養技能上去了。FOCUS + VERB➤be on sb/sth, remain on sb/sth焦點在於⋯；焦點仍然在⋯上◇Our primary focus this term will be on group work.這學期我們的重點是小組學習活動。➤shift, turn to sth焦點轉移／轉向⋯◇The focus has now shifted towards / toward the problem of long-term unemployment.現在焦點已轉移到了長期失業的問題上。PREPOSITION➤focus for⋯的集中點◇She became a focus for all his anger.她成了他全部怒氣的傾瀉對象。➤focus of⋯的焦點◇the focus of my research我研究的焦點➤focus on對⋯的關注◇an increased focus on younger people對年輕人越來越多的關注PHRASES➤a change of focus, a shift of focus焦點的改變／轉移▸➤the focus of attention關注的焦點◇He found he was now their main focus of attention.他發現自己現在是他們注意的焦點。
focus

noun²

 2point/distance at which sth is clearly seen焦點；焦距ADJECTIVE | VERB + FOCUS | PREPOSITION ADJECTIVE➤sharp清晰的聚焦點▸➤soft軟焦點◇soft-focus shots of baby animals以軟焦點拍的動物幼崽VERB + FOCUS➤come into變得清晰◇When I got glasses suddenly the whole world came into focus.我一戴上眼鏡，整個世界忽然變得很清晰。PREPOSITION➤in focus焦點對準◇The binoculars were not in focus.雙筒望遠鏡的焦距沒有調好。➤out of focus焦點未對準◇The children's faces are out of focus in the photograph.照片中孩子們的臉照得很模糊。
focus

verb¹

 1give attention to sth關注ADVERB | VERB + FOCUS | PREPOSITION | PHRASES ADVERB➤especially, heavily, largely, mainly, mostly, particularly, primarily, principally尤其／非常／很大程度上／主要／格外／特別／突出／首要關注▸➤completely, entirely, exclusively, only, solely, totally只關注◇The study focuses exclusively on schools.這項研究只關注學校。➤increasingly日趨關注▸➤fully全身心地關注▸➤firmly密切關注◇The attention of the news media was firmly focused on the elections.新聞媒體密切關注着選舉。➤specifically專門關注▸➤clearly明顯關注▸➤directly直接關注▸➤closely, intensely, sharply密切／嚴重／高度關注▸➤narrowly狹隘地關注▸➤initially剛開始時關注VERB + FOCUS➤need to需要集中▸➤try to試圖集中▸➤decide to決定集中▸➤tend to趨於集中▸➤help (to)有助於集中◇Think of some questions that will help focus the discussion.想出一些問題使討論的主題更突出。PREPOSITION➤on, upon集中注意力於⋯◇We need to focus upon the main issues.我們需要把注意力集中在那些主要問題上。PHRASES➤highly focused, tightly focused高度集中◇The department undertakes highly focused research.這個部門從事最專門的研究。➤narrowly focused關注範圍狹隘◇The study was criticized for being too narrowly focused.這一研究因關注範圍過於狹隘而遭到批評。
focus

verb²

 2adjust your eyes注視ADVERB | VERB + FOCUS | PREPOSITION ADVERB➤hard, intently密切／熱切注視▸➤automatically不由自主地注視VERB + FOCUS➤try to試圖集中視線◇She blinked and tried to focus.她眨了眨眼睛試圖讓自己看清楚。PREPOSITION➤on, upon將視線集中於⋯◇The eye will automatically focus on the small group in the foreground.視線會自動集中到最引人注目的那個小群體上。
TOEFL IELTS BNC: 1918 COCA: 688
focus verb
⇨ focus (focus on an issue) ⇨ aim (focus your eyes/a camera) focus

noun

focus ♦︎ centre ♦︎ heart ♦︎ hub ♦︎ focal pointThese are all words for the central and most important part of a particular place or activity. 這些詞均表示某地或活動的中心、核心。PATTERNS AND COLLOCATIONS 句型和搭配◆an important focus / hub / focal point◆the central focus / hub◆the commercial centre / heart / hub of sth◆to act / serve as a focus / centre / focal point◆to give sth / provide a focus / focal point◆the focus / centre of attention■ focus ˈfəʊkəs; NAmE ˈfoʊkəs [uncountable, countable, usually singular] the thing or person that people are most interested in; the act of paying special attention to sth and making people interested in it 中心點（指人或事物）；關注；引起關注◆His comments provided a focus for debate.他的評論提供了辯論的重點。◆We shall maintain our focus on the needs of the customer.我們將繼續重點關注顧客的需要。◆The incident brought the problem of violence in schools into sharp focus.這次事件使校園暴力成爲焦點問題。◆What we need now is a change of focus (= to look at things in a different way).我們現在需要的是改變對事物的看法。■ centre (BrE) (NAmE center) [countable, usually singular] the point towards which people direct their attention 中心；關注點◆Children like to be the centre of attention.小孩子喜歡引人注目。◆He could never doubt that he was the centre of her world.她的整個世界圍着他轉，對此他確信無疑。◆The prime minister is at the centre of a political row over leaked Cabinet documents.首相成了内閣文件洩密所引發的政治風波的中心人物。ⓘ Notice that you can say that sb/sth is the centre of attention or the centre of sb's world/universe, but you say that sb is at the centre of things/the action/a discussion. You can also say that sb is at the centre of sb's world/universe. 注意，可以說sb/sth is the centre of attention（某人／某事物是關注的中心）或sb/sth is the centre of sb's world/universe（某人／某事物是某人世界的中心）。可以說sb is at the centre of things/the action/a discussion（某人處在事情／行動／討論的中心），也可以說sb is at the centre of sb's world/universe（某人佔據某人世界的中心）。■ heart [countable, usually singular] the central part of a place 中心；中央◆'Hillsdown' is a quiet hotel in the very heart of the city.希爾斯頓是一家位於市中心的安靜的旅館。ⓘ In this meaning heart is mainly used to talk about the central part of a city, country or region. It is often used in advertising trying to attract people to a place. 表達此義時，heart主要指城市、國家或地區的中心，常用在廣告中，以吸引人前往某地。   see also heart ⇨ point noun ■ hub [countable, usually singular] the central and most important part of a particular place or activity （某地或活動的）中心，核心◆The bank is situated in the commercial hub of the city.該銀行位於城市的商業中心。◆The kitchen was the hub of family life.廚房是家庭生活的中心。◆a hub airport (= a large important one where people often change from one plane to another) 大型中轉機場NOTE 辨析 Heart or hub?In some cases you can use either word. 在有些情況下這兩個詞可以通用◆the commercial heart / hub of the city城市的商業中心However, the heart of the village/the town/the city/England usually suggests an attractive, historic place; the hub of the city/operations/business activity suggests a busy place where a lot of business is done. 不過，the heart of the village/the town/the city/England（村莊／集鎮／城市／英格蘭的中心）通常意味着這些地方富有吸引力，且有歷史意義；the hub of the city/operations/business activity（城市／業務／商業活動的中心）則意味着這些地方很繁華，商業活動繁忙。 ■ ˈfocal point ˈfəʊkl; NAmE ˈfoʊkl [countable, usually singular] a thing or person that is the centre of interest or activity 集中點，焦點（指人或事物）；活動中心◆In rural areas, the school is often the focal point for the local community.在農村，學校常常是當地社區的活動中心。◆The focal point of the policy developed by the government was the construction of a rail network .政府所提出的政策中，焦點是建設鐵路網。ⓘ Focal point is often used to talk about a place in a community which brings people together, for example a school, shop, church or play area. It can also be used to describe the central point of a discussion, lecture, or of sb's political activities; or the main part of a design or arrangement; or the main event in a series of planned events. * focal point常指社區裏人們聚會的地方，如學校、店鋪、教堂或遊戲場地等，亦可指討論、演講或某人政治活動的重點，或是設計或安排的主要部分，又或是一系列精心安排的事件中的重頭戲。 focus

verb

focus ♦︎ target ♦︎ direct ♦︎ be aimed at sb ♦︎ turn ♦︎ address ♦︎ orient ♦︎ pitchThese words all mean to give attention or a message to one particular person or group of people rather than another. 這些詞均表示關注或針對特定的人或群體。PATTERNS AND COLLOCATIONS 句型和搭配◆to focus / target / turn sth on sb / sth◆to target sth / direct sth / be aimed / pitch sth at sb / sth◆to target / direct / orient sth towards sb / sth◆to turn / address / orient sth to sb / sth◆efforts / resources / campaigns are focused on / targeted at / directed at sb / sth◆attention is focused on / directed at / turned to sb / sth◆research is focused on / directed at / oriented towards sth◆sth is focused on / targeted at a / directed at / an group / area◆primarily focused on / targeted at / directed at / aimed at / addressed to / oriented towards / pitched at sb / sth◆particularly focused on / targeted at / directed at / aimed at / oriented towards / pitched at sb / sth◆specifically focused on / targeted at / directed at / aimed at / addressed to / oriented towards sb / sth◆principally targeted at / directed at / aimed at / addressed to / oriented towards sb / sth◆directly focused on / targeted at / aimed at / addressed to / pitched at sb / sth◆mainly / clearly focused on / targeted at / directed at / aimed at sb / sth■ focus [intransitive, transitive] to give attention, effort, time etc. to one particular person, thing or situation rather than another 關注；注重；重點在於◆The discussion focused on three main issues.討論集中在三個主要問題上。◆Schools should not focus exclusively on exam results.學校不應該只注重考試成績。◆I was finding it hard to focus my mind properly.我發現很難好好地集中精神。◆The visit helped to focus world attention on the plight of the refugees.這次訪問促使全世界關注難民的困境。◆Much recent concern has been focused upon sea level rises.最近很多人都在關注海平面上漲的問題。◆Where do you really wish to focus your time and energy?你到底想要把時間和精力放在什麽地方？■ target [transitive, often passive] to try to help or influence a particular group of people, especially by offering a product or service designed for them 把（專門設計的産品或服務）面向，對準◆The booklet is targeted at people approaching retirement.這本小冊子的讀者對象是臨近退休的人。◆We target our services towards specific groups of people.我們的服務針對特定人群。◆This hospital is targeted for additional funding.這家醫院旨在獲得額外的資金。■ direct [transitive] (always used with a preposition 總是與介詞連用) to say or do sth that is intended to influence, affect or deal with a particular person, group, situation or issue 針對◆Was that remark directed at me?那話是沖着我來的嗎？◆Most of his anger was directed against himself.他主要是生自己的氣。◆There are three main issues we need to direct our attention to.我們需要注意的有三個主要問題。■ be aimed at sb

phrase

(of a product, service or remark) to be directed at a particular person or group of people （産品、服務或言論）針對，對象是◆The book is aimed at very young children.這本書的讀者對象是幼童。◆My criticism wasn't aimed at you.我的批評不是針對你。■ turn [transitive, intransitive] to give attention to a particular person, subject or situation, especially after attention has been on sb/sth else 把注意力轉向（特定的人、主題或情況）◆She looked at him, then turned her attention back to me.她看了看他，然後又把注意力轉回到我的身上。◆Don't turn your anger on the children.别朝孩子撒氣。◆His thoughts turned to his dead wife.他想起了自己過世的妻子。■ address [transitive] (formal) to say or write sth directly to a particular person 向⋯說話；針對⋯而寫◆I was surprised when he addressed me in English.他用英語跟我說話，我很詫異。◆Any questions should be addressed to your teacher.任何問題都應該向你的老師求教。◆The book is addressed to the general reader.這本書是寫給普通讀者的。■ orient ˈɔːrient (BrE also orientate ˈɔːriənteɪt ) [transitive, usually passive] to make sb/sth give more interest, attention or effort towards a particular subject, person or situation; to make or adapt sb/sth for a particular purpose 以⋯爲方向；以⋯爲目的；使適應◆Our students are oriented towards science subjects.我們的學生是理科方向的。◆We run a commercially oriented operation.我們經營一個商業性企業。■ pitch [transitive, often passive] (rather informal, especially business 尤用於商業) to aim a product or a service at a particular group of people 使（産品或服務）針對，面向；確定⋯的銷售對象（或目標市場）◆The new software is being pitched at banks.這種新軟件以銀行爲目標市場。◆Orange juice is being pitched as an athlete's drink.橙汁正作爲運動員飲料進行推銷。
TOEFL IELTS BNC: 1918 COCA: 688
focus
To pay attention: concentrate, focus, listen...
To take and develop photographs: blow up, capture, come out...
To make a machine or piece of equipment work: activate, actuate, coax...
What the eyes can do: adjust, blink, blink...
What light can do: reflect, flood, fade...
Parts of discussions: contention, focus, item...
Careful thought: thought, consideration, assessment...
Clear to the senses: obvious, apparent, show up...
Cameras and photographic equipment: analogue camera, aperture, body camera...
Terms in Physics: centre of gravity, density, focal length...

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