There may have been dozens of separate actions on a number of selections. The proper idiom for this is the Undo function, which resides on the toolbar or Edit menu and is active application-wide for all modeless dialog boxes.

• 在许多选择中可能有许多独立的操作，在这里合适的习惯用法是撤销功能，它位于工具栏或编辑菜单中，适用于活动应用程序范围内所有的非模态对话框。