undo

['ʌn'du:]

v. 解开, 松开, 取消

vt.

1. 解开, 打开; 使松开; 脱去(衣服等)

He undid the parcel.

他打开了包裹。

2. 取消, 消除; 使失败; 使复旧

What's done cannot be undone.

覆水难收。

3. 破坏, 败坏(成果、名誉等); 毁灭[H]

He has undone the good work of his predecessor.

他已毁了他前任取得的良好成就。

4. 扰乱, 使不安

词形变化

名词: undoer | 动词过去式: undid | 动词过去分词: undone | 动词现在分词: undoing | 动词第三人称单数: undoes |

词义辨析

同义:

vt.解开; 放松

unfasten  untie  disassemble  dismantle  take apart  

同义参见:

doff  annul  unlock  loosen  counterbalance  

反义参见:

gird  bind  belt  

英英释义

动词 undo:

cancel, annul, or reverse an action or its effect

deprive of certain characteristics

同义词：unmake

cause the ruin or downfall of

cause to become loose

同义词：untie, loosen

remove the outer cover or wrapping of

同义词：unwrap

补充

undoundo英:[ˌʌnˈdu] 美:[ʌnˈdu]vt.1.松开, 解开Can you undo this knot?你能解开这个结吗?He undid the parcel.他打开包裹。He undid the string round a parcel.他解开了绑包裹的绳子。He bent down and undid the laces of his shoes.他弯腰解开鞋带。2.毁灭; 败坏His pride will undo him some day.他的傲慢总有一天会毁了他。He did wrong, and in the end his wrongs undid him.行恶者终以其恶毁其身。This mistake has undone all our good work.这个错误使我们所有良好的工作白做了。The evil that he did can never be undone.他做的坏事永远不会被抹掉。What is done cannot be undone.覆水难收。

例句

1. I can't undo the knot.我解不开这个结。 2. She undid the buttons of her jacket.她解开了夹克衫的扣子。 3. I pulled off my top and undid my bra.我脱掉上衣, 解开胸罩。 4. I managed secretly to undo a corner of the parcel.我设法偷偷地打开了包裹的一角。 5. If he won, he would undo everything I have fought for.如果他赢了, 那我一直以来努力争取的一切都将付之东流。 6. A heavy-handed approach from the police could undo that good impression.警方的粗暴手段可能会抹去之前留下的良好印象。 7. It would be difficult to undo the damage.损失将难以弥补。 8. They were undone by a goal from John Barnes.约翰•巴恩斯的一粒进球使他们落败。 9. Macbeth is the story of a Scottish soldier who becomes king but is undone by his own ambition.《麦克白》讲的是一位苏格兰士兵当上了国王却毁于自己野心的故事。 10. He undid his belt because it was too tight.他解开了他的腰带，因为它太紧了。 11. What is done cannot be undone.覆水难收。 12. The fire undid the work of eight months.这场火灾使8个月干的活儿全白干了。 13. Our folly has undone us.我们的愚蠢把我们毁了。 14. Mention of the boy would still undo her sometimes.提起那个男孩有时仍会使她失去镇静。 15. He undid his neighbour's young daughter.他勾引了邻居的年轻女儿。 16. the knot was difficult to undo.这个结很难解。 17. there wasn't any way Evelyn could undo the damage.伊芙琳根本无法消除那损害所造成的影响。 18. Iago's hatred of women undoes him.埃戈对女性的仇恨毁了他自己。 19. to undo a knot/zip/button松开结子；拉开拉链；解开扣子 20. His mistake has undone all our good work.我们出色的工作全因他的错误而付诸东流了。 21. undo a belt/button/zipper解开皮带/纽扣/拉链 22. She undid [=unbuttoned] her blouse.她解开衬衫的纽扣。 23. I can't undo [=untie] this knot.我解不开这个结。 24. You can't undo the past.你无法改变过去。 25. The damage cannot be undone.损失无法挽回。 26. (computers) Will the program let me undo a change if I make a mistake?如果我弄错了，这个程序能否让我撤销更改？ 27. He was undone by greed.他毁于贪婪。