undo

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

undo UK US [ʌnˈduː] [ undoing ], [ undid ], [ undone ] verb transitive [ undoing undid undone undos ]
 
UNFASTEN

1. <I > to unfasten something that is fastened or tied
• Can someone help me to undo my seat belt?
Thesaurus⁺: ↑Unfastening and opening
 
• I undid the buttons on my blouse.
• He had eaten so much that he had to undo his belt a couple of notches.
• He had undone the buttons of his shirt, exposing an unsightly expanse of white flesh.
• If the curtains are too short you could undo the hem to make them a bit longer.
• He gently began to undo the zip at the back of her dress.
 
REMOVE EFFECTS

2. to remove the good or bad effects of an action or several actions
• I did a really tough aerobics class and then went out for a meal and undid (all) the good work!
• It's very difficult to undo the damage that's caused by inadequate parenting in a child's early years.
Thesaurus⁺: ↑Destroying and demolishing ↑Damaging and spoiling

• Từ đồng nghĩa / Synonyms:
  unwrap, untie, loosen, unmake
• Từ trái nghĩa / Antonyms:
  wrap, wrap up, do, make