water off a duck's back

短语

别名

water off a duck

释义与例句

n.
  1. 1.

    Something potentially harmful or hurtful, such as criticism or insult, that nevertheless has no effect or impact on the target.

    不可数

    She's always going on at him about something, but to him it's all water off a duck's back.

词源

From the idea that water rolls easily off a duck's back and does not penetrate the duck's feathers.

来源：wiktionary