She worked as a secretary, or rather, a personal assistant.

她当了秘书；确切地讲，是私人助理。

My job is somewhere between a secretary and a personal assistant.

我的工作介于秘书和私人助理之间。

She was a hard-pressed personal assistant to a frenetic company chairman.

她给一位疯狂的公司总裁当私人助理，有很大的压力。

Do I have a personal assistant?

我有私人助理吗？

You'll be my personal assistant.

你可以做我的私人助理。