undo
英 [ˌʌnˈduː]
[VERB]
undoes , undoing , undid , undone
1. [T 及物动词] 打开 , 解开 , 松开
If you undo something that is closed, tied, or held together, or if you undo the thing holding it, you loosen or remove the thing holding it.
双语例句
例：I managed secretly to undo a corner of the parcel.
我设法偷偷地打开包裹的一角。
例：I undid the bottom two buttons of my yellow and grey shirt.
我解开了我黄灰色相间的衬衫最下面的两颗纽扣。
2. [T 及物动词] 使无效
To undo something that has been done means to reverse its effect.
双语例句
例：A heavy-handed approach from the police could undo that good impression.
警察的专制手段能使那个好印象化为乌有。
例：She knew it would be difficult to undo the damage that had been done.
她知道很难挽回已造成的损失。
VERB. 动词
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