it doesn't tell the difference whether you go or not为什么用tell,是什么用法?

问题描述:

it doesn't tell the difference whether you go or not
为什么用tell,是什么用法?

tell the difference是固定用法,tell是区分的意思

tell the difference between sth
区分的意思

tell the difference固定词组
你去不去都没差别