undo的经典引文是：She undid the gate, and held it half open.出自：L. Parr。undo的词语用法是v.(动词)undo指将原本捆绑着的东西打开,如鞋带、包裹等,即“松开,解开”,主要强调解开的动作,而不强调解开的状态。引申可指“毁坏,败坏”。undo名词:undoer；过去式:undid；过去分词:undone；现在分词:undoing；第三人称单数:undoes。
一、详尽释义点此查看undo的详细内容
二、双解释义
三、英英释义
"I wish I could undo my actions"
"A single mistake undid the President and he had to resign"
"undo the shoelace"
"untie the knot"
"loosen the necktie"
"Let's unwrap the gifts!"
"undo the parcel"
四、例句
Would you please undo this knot for me?
你能不能帮我把这个结解开？
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。
To return a database to its state as of the last committed change, i.e., to undo recent uncommitted changes.
使一个数据库返回到它上次已确认的改变之后的状态，即取消最近的尚未确认的变动。
A compensating transaction means that a new transaction will undo the effects of previous transactions.
补偿事务的意思是一个新事物会用于取消前一个事务的所有效果。
五、词汇搭配
六、经典引文
She undid the gate, and held it half open.
出自：L. ParrMarcus..undid Patrick's pyjama jacket and started to pull it off.
出自：I. Murdoch七、词语用法
undo的相关近义词
untie、unfasten、loosen、unwrap、disassemble、dismantle、unbutton、disengage、open、unknot、unravel、cancel out、negate、cancel、nullify、invalidate、reverse、work against、unlock、doff、annul、apart、take、take apart、abolish、wreck、destroy、spoil、counterbalance、unmake
undo的相关临近词
undoubted、undesirable、undor、UNDOF、undog、undone、undose、undoer、undope、undock、undosus、undoing