v.解開;松開;取消
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(shù)據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。
A compensating transactions:學報;會報." target="_blank">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。
undo指將原本捆綁著的東西打開,如鞋帶、包裹等,即“松開,解開”,主要強調解開的動作,而不強調解開的狀態(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構。
undo的過去式是undid,過去分詞是undone。