I am enjoying sunbathing on the beach.

This structure was built centuries ago.

Astronautics is a field of study related to the exploration of space and the design of spacecraft.

My major is mechanical engineering.

My major is mechanical engineering.

He is an expert in systems engineering.

My major is chemical engineering.

He is majoring in astronautics.

She had a beauty like that of a peony.

We played a match on the artificial turf soccer field.