英语语法分析

undo

v. 解开，松开；消除……影响或结果，使恢复原状；撤销（先前的计算机指令）；破坏，毁掉

n. （计算机）撤消还原

复数 undos

第三人称单数 undoes

现在分词 undoing

过去式 undid

过去分词 undone

例句

He tried to undo the knot by picking at it with his fingers.

他用手指不停地扯，想把绳结解开。

《牛津词典》

The knot was fastened in such a way that it was impossible to undo.

那个结系死了，没法解开。

《牛津词典》

Oh, do let me help to undo it!

哦，让我帮你解开它吧！