undo

US /ʌnˈduː/
UK /ʌnˈduː/
"undo" picture
1.

解开, 松开, 打开

unfasten, untie, or unwrap (something)

:
•
Can you help me undo this knot?
你能帮我解开这个结吗？
•
She carefully undid the buttons on her coat.
她小心翼翼地解开了外套上的扣子。
:
unfastenuntieunbuttonunzipunclasp
:
dofastentiewrap
2.

撤销, 取消, 废除

cancel or reverse the effect or result of (a previous action or decision)

:
•
I wish I could undo what I said.
我希望我能撤销我说过的话。
•
The software allows you to undo your last action.
该软件允许你撤销上一个操作。
:
reversecancelnegatenullifyrevoke
:
doperformexecute