To take exercise in doors is less beneficial than in the open air.

在室内锻炼不如在室外锻炼更有益

Let's take exercise for example.

我们就以锻炼为例。

It is very important to take exercise.

锻炼身体很重要。

How often do you take exercise?

你多久锻炼一次？

He gets up early to take exercise.

他常常早起锻炼。

I often take exercise.

我经常锻炼。