A number of oil and chemical companies were gradually built.

And in the end, believe it or not, we gradually built our whole camp.

But such systems are complicated and need to be built gradually, she said.

Since 1999, 1,300 apartments were gradually built during a 6 year period.

Start with one night a week, and then work up to three or four, to gradually build the habit.

Then you gradually build it back up again and have a really bad crash.

She was not quick to anger, but instead would build gradually.

Gradually build to a goal of swimming 30 minutes at a time.

In the 16th and 17th centuries, other objects were gradually built.

This open drain would then have been gradually built over, as building space within the city became more valuable.