我正在跑步。

I am running.

youdao

当他们跑步的时候，我正在游泳。

While they are running, I was swimming.

youdao

正在跑步的那个人是我的叔叔。

The man who is running is my uncle.

youdao

我看见那人正在街上跑步。

I saw the man running on the street.

youdao

我正在院子里跑步。

I am running in the yard.

youdao

我正在院子里跑步。

I am running in the yard.

youdao