同学你好，该知识点来自沪江网校《英语零基础直达大学六级【随到随学班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
explanation 解释；说明；阐述，比如
to offer/provide an explanation 给予解释
I can't think of any possible explanation for his absence.
我想不出他缺席的任何理由。
She left the room abruptly without explanation .
她未作解释就突然离开了房间。

She's going to ask for an explanation tomorrow.  她打算明天要求一个解释。

祝同学学习进步~