take something with a pinch of salt idiom UK (US take something with a grain of salt)
对…半信半疑，对…有所怀疑
to not completely believe something that you are told, because you think it is unlikely to be true
You have to take everything she says with a pinch of salt, because she tends to exaggerate. 你不能完全相信她的话，她总是喜欢夸大其词。