I'm afraid he's fallen behind at this point.

我担心他现在已经跟不上了。

Work hard, or you'll fall behind.

加把劲，不然你要落后了。

Today is a lovely day for a pop quiz.

今天是个适合考试的好日子。

He already missed a pop quiz.

他已经错过了一次突击测验。

He seems like such a eager-beaver.

他看起来是个做事特别努力的人。

Eager beavers like me are always ready!

像我这样做事努力的人时刻都准备着！

Sometimes I have to pull an all-nighter if I have a lot of work due.

当我有很多工作要完成时，我就必须得熬夜。

I am so tired because I pulled an all-nighter last night.

我累坏了，因为我昨晚熬夜了。

Despite this, he still decided to drop out of school.

尽管如此，他还是决定退学。

If we fail more than 3 classes，we'll have to drop out of school !

如果我们挂了3科以上，我们就不得不退学。