Mutations
n. [遗] 突变；变化；转变（mutation的复数形式）
🗣️ 情景例句
May I speak to the head of the household?
我可以请户主听电话吗？
These clothes are too long , they need to be taken up.
这些衣服太长了需要去改一下。
Two return tickets to London,please.
买两张到伦敦的往返票。