I had been working at a public Accounting firm for a couple of years.

我在一家会计事务所已经工作了几年。

为什么是会计学呢？ - SpeakingMax英语口语达人

So I think, especially the top levels of the accounting public firm structure,

所以我认为，尤其是越在公共会计事务所的高层，

会计学很有意思 - SpeakingMax英语口语达人