If you retract something that you have said or written, you say that you did not mean it.
例句
Mr Smith hurriedly sought to retract the statement, but it had just been broadcast on national radio...史密斯先生想趕快收回這項聲明，但它剛剛已經在國家電臺播出了。He's hoping that if he makes me feel guilty, I'll retract.他指望著如果他能讓我感到內疚，我就會收回所說的話。
V-ERG
（使）縮回;（使）縮入;（使）收起
When a part of a machine or a part of a person's body retracts or is retracted, it moves inwards or becomes shorter.
例句
Torn muscles retract, and lose strength, structure, and tightness.撕裂的肌肉會收縮，喪失原來的力量、結構和緊實度。...when the aircraft's wheels were retracted.當飛機的輪子收起來的時候