我不知道他究竟从事什么职业。

I really didn't know just what profession he practised.

youdao

你父亲是从事什么职业的?。

What line is your father in?

youdao

当有人问我从事什么职业时，我感到很尴尬，脸发烫，结结巴巴地难以启齿。

When someone asks me what business I am in, I become embarrassed. I stutter and stammer. My face feels hot.

youdao

After you graduate, you can choose what you want to be.

你毕业后可以选择你要从事什么职业。

为了更美好的世界 - SpeakingMax英语口语达人