「一劳永逸」英文怎么说？once and for all
once and for all = 一劳永逸（惯用语）
once and for all 是什么意思？
once and for all：一劳永逸。出自主题「母语人士超爱用的惯用语」。
例句
- Let's fix this once and for all.
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同主题还有
| hit the sack | 去睡觉 |
| cost an arm and a leg | 非常昂贵 |
| spill the beans | 泄漏秘密 |
| let the cat out of the bag | 说溜嘴 |
| hit the nail on the head | 一针见血 |
| the ball is in your court | 该你决定 |
| beat around the bush | 拐弯抹角 |
| bite the bullet | 硬着头皮做 |