He is camping in the mountains.

It's my habit to go to the Jusan Mairi every year.

My friend works as a real estate agent.

I am majoring in computer science at university.

Trigonometry is a branch of mathematics that studies the relationship between angles and triangles.

Butyrate is said to be beneficial for the health of the intestinal flora.

His trilogy is very popular.

I use a set square to draw shapes.

Mensa is one of the constellations in the southern hemisphere.

In chemistry class, I learned about acid anhydride.