undo
undo是什么意思,
undo怎么讀
語音:
英音
[?n'du:]
美音 [?n?du]
vt. 松開,解開;取消,廢除;毀滅;擾亂
vi. 撤銷
【記】un(開)+do(做)→剛開始做,命令就撤銷了。
第三人稱單數: undoes
過去式: undid
過去分詞: undone
現在分詞: undoing
易混淆的單詞: UNDOUndo
undo 打開
un-, 使相反,do, 做。即把做好的解開,打開。
用作動詞(v.)
- Would you please undo this knot for me?
你能不能幫我把這個結解開? - 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.
使一個數據庫返回到它上次已確認的改變之后的狀態,即取消最近的尚未確認的變動。 - A compensating transaction means that a new transaction will undo the effects of previous transactions.
補償事務的意思是一個新事物會用于取消前一個事務的所有效果。
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