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

In his study of international law, he particularly focuses on jus gentium.

We like to watch satellite broadcasting at home.

The calculus of variations is a branch of mathematics that deals with the optimization of functions.

He is studying at law school.

The fire alarm went off, so we immediately evacuated the building.

A tsunami warning has been issued, so please evacuate immediately.

This restaurant has an all-you-can-eat sushi.

A visitor has come.

I attend psychotherapy sessions every week.