A park brings all those things together in a controlled environment.

While the guests are here in a controlled environment he can watch them and choose his moment.

We have to do more tests in a controlled environment.

Children need the ability to sit in a controlled environment and be tested on their knowledge.

This must be done in a very controlled environment because of the risk associated with these drugs.

We want to see whether in this controlled environment the population is viable.

The cheese is ready after an average of 60 to 66 days in a controlled environment.

"We were not working in a controlled environment," he quickly added.

"This is a way to do something extreme in a very controlled environment."

This is a plan to set up a controlled environment!