undo

vt.

松开，解开；取消，废除；毁灭；扰乱

vi.

撤销；

过去式：undid过去分词：undone现在分词：undoing第三人称单数：undoes

1. Would you please undo this knot for me?
   你能不能帮我把这个结解开？
2. 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。
3. 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。
4. 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。

Undo as concurrent inverse in group editors
Undo any operation at any time in group editors
Undo for Operators: Building an Undoable E-mail Store
GOP asks high court to undo 'soft money' ban
A selective undo mechanism for graphical user interfaces based on command objects
How Women Engineers Do and Undo Gender: Consequences for Gender Equality
Investigating the Granularity of the Undo Function in Human〤omputer Interfaces
Facts and artifacts in using analysis of covariance to "undo"the law of initial values.
Productivity Losses from Financial Frictions: Can Self-Financing Undo Capital Misallocation?
An integrating, transformation-oriented approach to concurrency control and undo in group editors