我无法胜任为别人工作。

I'd be hopeless at working for somebody else.

《柯林斯英汉双解大词典》

他无法胜任这项工作。

He's not up to the job.

《牛津词典》

如果你不多注意你的功课，你永远无法胜任任何事。

If you don't pay more attention to your lessons, you will never be fit for anything.

youdao