1.However, my sister does not worry about what people say about her. Criticism falls off her "like water off a duck's back."
fall off 減少;跌落;下降;離開;衰退
When your exhaust pipe falls off, you have to replace it.
當你的排氣管脫落時,你只能更換它 。
Unemployment is rising again and retail buying has fallen off.
失業率又在上升,而零售購買量已經減少 。