it's no use crying about it.it's not worth worrying about.为什么一个用no,一个用not,请详解

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it's no use crying about it.it's not worth worrying about.为什么一个用no,一个用not,请详解

it's no use crying about it.it's not worth worrying about.为什么一个用no,一个用not,请详解
it's no use crying about it.it's not worth worrying about.为什么一个用no,一个用not,请详解

it's no use crying about it.it's not worth worrying about.为什么一个用no,一个用not,请详解
use是名词,no 是形容词修饰use
worth 是形容词,not 是副词修饰worth
又如It's no good doing it this way//good是名词
It's not easy to do it.//easy 是形容词

前句:no use doing 意为:做某事没有
no + use<名词>
后句:be not worth doing 意为:不值得做某事
not+ worth<形容词>
望采纳~