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新东方-柯林斯雅思备考词典

undo

英  [ˌʌnˈduː]
    

[VERB]

    VERB. 动词

  • 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。

新东方在线雅思考试热词