The study of phonons is an important field in physics.

That battlefield was truly a hell of agonizing cries.

My dream is to visit the Portuguese Republic.

He is undergoing psychotherapy to overcome anthropophobia.

He joked around and used vulgar language.

He was concealing that information.

In the old days, people used to consider milk as an important source of nutrition.

Our opinions differ.

The content of this book is very high quality.

There was a big spider in the corner of the room.