The teacher used an analogy between a heart and a pump to explain how the circulatory system works.

I am currently in the process of writing my dissertation on the effects of social media on mental health.

He tried to grasp the concept, but it was too difficult.

The polar bear is a magnificent creature.

His great performance drew thundering applause from the audience.

After undergoing rehabilitation, the injured person was able to reintegrate into society.

Reliability is an important factor when choosing a car.

The scientist conducted an empirical study to test the new theory.

Differentiation is an important concept in mathematics.

The prominent building stood out among the others.