Break a leg - Used to wish someone good luck, especially in performance contexts.
Hit the sack - To go to bed or go to sleep.
Piece of cake - Something very easy to do.
Spill the beans - To reveal secret information unintentionally or indiscreetly.
Under the weather - Feeling ill or sick.
Break a leg - 字面意思是"断条腿"，实际意思是"祝你好运"，特别用在表演场合，相当于咱们说的"加油啊老铁"。
Hit the sack - 直译是"打麻袋"，其实就是"睡觉去"，跟咱北京话"躺平了"一个意思。
Piece of cake - "小菜一碟"，形容事情特别简单，跟玩儿似的。
Spill the beans - "说漏嘴了"，不小心把秘密说出来了，跟"秃噜嘴"差不多。
Under the weather - "身子骨不得劲"，就是感觉不舒服、生病了的意思。
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