The screen that normally protects a batting practice pitcher had been pushed aside.

Immune system: A complex system that normally protects the body from infections.

A dry suit normally protects the whole body except the head, hands, and possibly the feet.

The immune system normally protects the body against harmful substances, such as bacteria and viruses.

Cartilage normally protects the joint, allowing for smooth movement.

Cartilage normally protects a joint, allowing it to move smoothly.

The plastic cover that normally protected the delicate nerve interface had spun out into the night, hopelessly lost.

The immune system normally protects the body from viruses and bacteria by producing antibodies to fight them.

Such parachutes normally protect executives who lose their jobs.

Immune cells normally protect the body from foreign invaders.