take sth with a pinch of salt

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UK (US take sth with a grain /greɪn/ of salt)

to not completely believe something that you are told, because you think it is unlikely to be true

对…半信半疑，对…有所怀疑

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。