[ T ] to take back an offer or statement, etc. or admit that a statement was false撤销;撤回;收回
retract an invitation/confession/promise取消邀请/翻供/收回承诺
When questioned on TV, he retracted his allegations.在接受电视采访时,他收回了他以前的说法。
[ I or T ] to pull something back or in缩回;收起
The wheels retract after the aircraft takes off.飞机起飞后轮子便收了起来。
The cat retracted its claws.猫把爪子缩了回去。