undo

B1 CET-4 高中 FREQ #7993 ★☆☆☆☆

vt. 解开, 取消, 破坏, 毁灭, 扰乱 vi. 松开 [计] 撤消

发音

其它 /ʌnˈduː/

词形变化

undoer undos 复数 undos undid undoed undoes 三单 undoes undoest undoeth undoing undone undoing 现在分词 undid 过去式 undone 过去式 undone 过去分词

教材释义与例句

动词

取消；解开；破坏；扰乱

to open something that is tied, fastened or wrapped

动词

撤消

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。

释义与例句

n.
  1. 1.

    An operation that reverses a previous action.

    及物 计算机 工程 数学

    How many undos does this program support?

v. B1
  1. 1.

    To reverse the effects of an action.

    复原

    重做

    及物

    Fortunately, we can undo most of the damage to the system by the war.

    What's done can't be undone.

  2. 2.

    To unfasten.

    解开

    及物

    Could you undo my buckle for me?

  3. 3.

    To unfasten the clothing of (a person).

    非正式 及物

    PROSTITUTE: Undo me. There's a dear.

  4. 4.

    To impoverish or ruin, as in reputation; to cause the downfall of.

    比喻 及物
adj.
  1. 1.

    Misspelling of undue.

    及物

词汇关系

动词

同义词 4

untie loosen unwrap unmake

上位词 8

turn change ruin reverse expose alter uncover modify

下位词 10

open destroy spread untie disconnect unfold unravel unwind unplug unbutton

词源

From Middle English undōn, from Old English ondōn, from Proto-West Germanic *andadōn (“to undo”), equivalent to un- + do. Cognate with West Frisian ûndwaan, ûntdwaan (“to undo; rid”), Dutch ontdoen (“to undo”).

来源：wiktionary