He is studying late into the night to learn a new computer language.

He remained silent and didn't say anything.

He is involved in the development of androids.

Nuclear fission is a powerful phenomenon that generates energy.

I am planning to go to Copenhagen next week.

Cell biology is the study of the structure and function of cells, which are the basic units of life.

Let's calculate so that all numbers become equal.

Every morning, I meditate to cleanse my mind.

The bird is making a nest in the tree.

Saito is my best friend.