Has not been difficult,then does not have attains什么意思

问题描述:

Has not been difficult,then does not have attains什么意思

不历艰险,难获成功。

没有艰辛,便无所获。

不经历风雨,怎能见彩虹
或者
不入虎穴焉得虎子

没有困难就不会有收获