undo
Word family
Longman Dictionary of Contemporary English 5++LDOCE 5++ldoce_346_gun·do /ʌnˈduː/ ●●○ verb (past tense undid /-ˈdɪd/, past participle undone /-ˈdʌn/, third person singular undoes /-ˈdʌz/) [transitive] 1 FASTEN1#TIE#to open something that is tied, fastened, or wrapped 解开，打开，松开〔某物〕 The screws can be undone by hand. 这些螺丝可以用手拧开。 I undid the package carefully. 我小心地打开包裹。undo your jacket/shirt/bra etc 解开你的夹克/衬衫/胸罩等 He undid his coat. 他解开外套。► see thesaurus at open2 IMPROVEto try to remove the bad effects of something you have done 消除…的坏影响 We cannot undo the damage of a lifetime in only 30 days. 我们不能在短短的 30 天内消除影响一生的伤害。 If a medicine is taken again too soon, it may undo all the good that has been done. 如果服用一种药物时间间隔过短，可能会抵消所有已产生的药效。3. technical to remove the effect of your previous action on a computer 撤销〔先前的计算机指令〕→ See Verb tableExamples from the Corpus
undo• Stelling was eventually undone by his political mistakes.• Rosie undid her necklace and put it on the bedside table.• Pop that unravels its own workings, undoes itself.• Marcus then undid Patrick's pyjama jacket and started to try to pull it off, then decided not to.• My fingers were so cold that I couldn't undo the buttons.• Cotton, with an assist from this public-spirited pillar, has done his best to undo the damage caused by the hogwash.• But there is no easy way to undo the nuclear binge of the cold war.• She undid the ribbon and let her hair fall over her shoulders.• She carefully undid the ribbons and opened the scroll.• I can't undo the string!• I wish it was possible to undo what I've done.undo the damage• Maybe there was still time to undo the damage?• There wasn't any way Evelyn could undo the damage.• Cotton, with an assist from this public-spirited pillar, has done his best to undo the damage caused by the hogwash.• We certainly can not undo the damage of a lifetime in only thirty days, Sam.• It would be a cruel hoax because City would not be able to undo the damage these young people had suffered.• Yet the government can not easily undo the damage wrought by the courts.un·do verbChineseSyllable
or to fastened, open tied, wrapped Corpus something that is
undo
un‧do /ʌnˈduː/
verb (past tense undid /-ˈdɪd/, past participle undone /-ˈdʌn/, third person singular undoes /-ˈdʌz/) [transitive]
The screws can be undone by hand.
I undid the package carefully.
undo your jacket/shirt/bra etc
He undid his coat.
2. to try to remove the bad effects of something you have done:
We cannot undo the damage of a lifetime in only 30 days.
If a medicine is taken again too soon, it may undo all the good that has been done.
3. technical to remove the effect of your previous action on a computer
un‧do /ʌnˈduː/
verb (past tense undid /-ˈdɪd/, past participle undone /-ˈdʌn/, third person singular undoes /-ˈdʌz/) [transitive] Word Family: verb: do, outdo, overdo, redo, undo; noun: deed ≠ misdeed, do, doing; adjective: done, overdone, undone
1. to open something that is tied, fastened, or wrapped: undo your jacket/shirt/bra etc
2. to try to remove the bad effects of something you have done:
3. technical to remove the effect of your previous action on a computer