once for all

• 彻底地； 一劳永逸地

once for all的用法和样例：

例句

1. Thoroughly clean the entire house,often done only once a year.
   彻底地打扫房屋，经常是每年一次。
2. Tomorrow we shall have finished with this business once for all.
   明天我们就能一劳永逸地把这事结束掉了。
3. She had hoped to get rid of the girl for good and all.
   她原想一劳永逸地把这个姑娘赶走。