Their delicate systems are upset when they've had sad, confusing or frightening moments.

This was set aside purely to protect a delicate ecological system whose heart, its lifeline, is the water.

Farmers have difficult decisions to make about delicate ecological systems and fluctuating economics.

New vegetables should be introduced slowly due to the delicate digestive systems of rabbits.

It's a delicate system, and any change in the atmosphere is going to impact it heavily.

Lack of balance in this delicate system leads to pathologies such as Parkinson's disease.

This feature allows for rapping of event the most delicate systems.

I do not believe that the great, delicate systems we engineered, the animals and plants we made, can be brought back as they once were.

Not many could operate the delicate systems without tipping into chaos.

If not, there would be a large imbalance in the Constitution's otherwise delicate system of checks and balances.