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 减少;跌落;下降;离开;衰退
When your exhaust pipe falls off, you have to replace it.
当你的排气管脱落时,你只能更换它 。
Unemployment is rising again and retail buying has fallen off.
失业率又在上升,而零售购买量已经减少 。