He is majoring in aerospace engineering.

He worked as a rear gunner in a fighter plane.

The sperm whale is a large whale that lives in the deep sea.

He is an expert in ethology.

This area is rich in bedded cupriferous iron sulphide deposits.

He is researching on the pathogenesis and treatment of early-onset diabetes.

You should not be deceived by the deceptive advertising of this product.

The artificial satellite is orbiting around the earth.

The study of artificial life is a new frontier in science.

Higher fatty acids play an important role in our health.