耳边风;水过鸭背
(like) water off a duck's back
(像)耳边风;水过鸭背
used to say that sth, especially criticism, has no effect on sb / sth
I can't tell my son what to do; it's water off a duck's back with him.我无法告诉我儿子该做什么,他根本听不进去。
释义来自《牛津高阶英汉双解词典》第 9 版