撤消上一个操作或者一系列操作，这些操作显示在“撤消”列表中。

Undoes the last action or a sequence of actions, which are displayed in the Undo list.

youdao

撤消上一个操作或者一系列操作，这些操作显示在“撤消”列表中。

Undoes the last action or a sequence of actions, which are displayed in the Undo list.

youdao