Undo
[ ʌn'du ]
第3级
其它 Other
vt. 松开，解开;取消，废除;毁灭;扰乱;
vi. 撤销;
💡 词根助记
un除去，解开+do做→取消，解开
📝 例句
What's done cannot be undone.
覆水难收。
There was bandages to do, sir, and bandages undo.
要扎绷带，先生，还要解绷带。
Ah, don't let us undo what you've done.
啊，不要让我们改变你们已经决定了的事。
It is better for the doer to undo what he has done.
解铃还需系铃人。
He has undone the good work of his predecessor.
他已毁了他前任取得的良好成就。
🌱 联想助记
【记】※ un-前缀“不、相反”,do-做、干:不做原来定好的事情→取消
※ un-前缀“不、相反”,do-做、干:你如果不干坏事,我就解开你身上的绳子
✅ 同义词
🔴 反义词
📖 牛津释义
undo
v
(pt undid , pp undone ) [Tn]
1 untie or unfasten (knots, buttons, etc); open (a parcel, an envelope, etc) 解开, 松开（结、 钮扣等）; 打开, 拆开（包裹、 信封等）
My zip has come undone. 我的拉锁开了.
I can't undo my shoelaces. 我解不开鞋带.
undo (ie unravel) some knitting 拆开编结物. Cf 参看 do up (do2), do sth up.
2 destroy the effect of (sth); cancel 使（某事物）无效;取消; 废除
He undid most of the good work of his predecessor. 他把前任的大部分业绩毁掉了.
What is done cannot be undone. 已做的事是既成事实.
🎯 考研助记
我不(un)干(do)， 松开我
🔁 扩展释义
*[,ʌn'du:]vt. 解开, 取消, 破坏, 毁灭, 扰乱vi. 松开【计】 撤消
📖 同为「CET-4」词汇
查看全部CET-4词汇 ›🗣️ 情景例句
This factory needs a computer as soon as possible.
工厂需要尽快有一台电脑。
Yes, that's a good idea. But I have another difficulty. My written English isn't very good either.
是的，这主意不错。但我还有另外一个难题。我的书面英语也不好。
No, not exactly. But later, peole developed a way of printing, using rocks.
不完全是这样。但后来，人们利用石头，研制了一种印刷方法。