undo的意思

vt. 松開，解開,取消，廢除,毀滅,擾亂

vi. 撤銷

變形：過去式: undid； 現(xiàn)在分詞：undoing； 過去分詞：undone；

undo用法

undo可以用作動詞

undo指將原本捆綁著的東西打開,如鞋帶、包裹等,即“松開,解開”,主要強調(diào)解開的動作,而不強調(diào)解開的狀態(tài)。引申可指“毀壞,敗壞”。

undo多用作及物動詞,后接名詞或代詞作賓語?？捎糜诒粍咏Y(jié)構(gòu)。

undo的過去式是undid,過去分詞是undone。

undo用作動詞的用法例句

Would you please undo this knot for me?你能不能幫我把這個結(jié)解開？

He tried to undo the knot by picking at it with his fingers.他用手指不停地扯，想把繩結(jié)解開。

To return a database to its state as of the last committed change, i.e., to undo recent uncommitted changes.使一個數(shù)據(jù)庫返回到它上次已確認的改變之后的狀態(tài)，即取消最近的尚未確認的變動。

undo用法例句

1、If Michael won, he would undo everything I have fought for.

如果邁克爾贏了，那我一直以來努力爭取的一切都將白費。

2、Once the damage is done, even modern surgery can't undo it entirely.

傷害一旦造成，即使是現(xiàn)代外科手術(shù)也無法將其完全消除。

3、A heavy-handed approach from the police could undo that good impression.

警方采取高壓手段可能會毀掉之前留下的好印象。