be absent from class的意思|示意

You should not be absent from class.

许多学生缺席，特别是连班长也没来。

We can't afford to be absent from class again.

我们再缺课的话就有麻烦了。

A good student won't be always absent from class without asking for a leave.

一个好学生是不会经常旷课的。

Those at the bottom of the educational heap tend to be white, working-class, Protestant boys from families in which academic aspiration is absent.

这些教育上的付出有助于他们成为白领、工薪阶层，而来自新教家庭的孩子则缺少学习愿望。