undose

adj.呈波浪形的,波状的

撤销；恢复；取消；回退

动词

1. If you make a mistake, you can always undo it.
如果你犯了一个错误，你总是可以撤销的。

2. Once the command is executed, there is no way to undo the changes.
一旦执行了该命令，就无法撤销所做的更改。