He made jejune generalizations about how all students were lazy and never did any work.

他以偏概全地认为所有的学生都很懒 什么都不干

We knew we were in for a pretty long, jejune evening.

我们知道自己身处一个相当漫长而乏味的夜晚。

She seems a rather creepy, jejune and adolescent fantasy.

她是一个怪异，不成熟的青春幻想产物。

We were surprised by their jejune responses to our problems.

他们空洞的响应让我们很惊奇。

Then she was gone, leaving me in unexpectedly jejune loneliness.

于是她走了，置我于意想不到的空虚孤独之中。

They were of great service in correcting my jejune generalizations.

他们纠正了我不成熟的泛泛之论，帮了我大忙。