work hard,hard work,hard-working在意思和用法上有何差别

Question

如题所述

Answer 1

区别如下：【work hard】动词短语,努力工作.He works really hard.他真的很努力工作【hard work】名词短语,艰难的工作.He is doing a hard work.他正在做一个困难的工作.【hard-working】形容词短语,努力的、勤奋的....