You'd better not work too long.

你最好不要工作太长时间。

youdao

To work too long or too hard.

她的健康因工作过度而受损。

youdao

To work too long or too hard.

我们拼命工作，许多人死于过度劳累；

youdao

That happened not too long ago, but it was just a really fantastic display of all his work.

那是不久前的事情，但它真的极好地展示了他所有的作品。

印象深刻的展示会 - SpeakingMax英语口语达人

Lord Layard's analysis suggests an alternative view: it is not that Europeans are working too little, but that Americans work too long, driven to choose more income instead of leisure by an urge to keep up with the Joneses.

ECONOMIST: Why don't rising incomes make everybody happier?

What could have been two or three weeks' work lasted far too long.

FORBES: JargonSpy

It's that we are putting Americans to work doing the work that America needs done in critical areas that have been neglected for too long, work that will bring real and lasting change for generations to come.

CNN: Obama's remarks on signing the stimulus plan