This is a very good way to explain what you are doing at a given moment in time.

这个句型可以很好地解释在某一时刻你正在做些什么。

I'm ~ing 课堂 - SpeakingMax英语口语达人

What are some things that you have to be good at as an architect?

当建筑师要擅长什么呢？

要成为建筑家 - SpeakingMax英语口语达人