There was a balance between hard work and social activities.

"Is there a line between my lobbying and individual political activities?"

The physical separation and differences between available activities make it very difficult.

The correlation between oil prices and economic activity, however, has held up rather well.

"Today a dog run is where he rests between activities."

It also concerns the relations between economic activities in different regions.

There are significant differences between activities in early communist era and late one.

A big problem, the officials said, was that Hamas mixed its money between political and military activities.

What is the appropriate measure of scale difference between industrial activities?

On holidays I like to strike a balance between activity and just sitting doing nothing.