你的业务性质到底是什么？

What exactly is the ___nature of your business?

我不喜欢打猎和类似性质的事情。

I don't like hunting and things of that ___nature.

他声称由于工作的性质，他没有提高英语水平。

He claims that he did not improve his English because of the ___nature of the job.