In medical classes, we learn about the structure of the human body.

He is suffering from inflammation of the renal pelvis.

He has many Taiwanese friends.

My father is engaged in poultry farming.

Morphology is a part of linguistics that studies the form and structure of words.

I look forward to buying betting tickets at the horse races on weekends.

The length of this room is about 5 meters.

The system of this computer is very complex.

Kei is my best friend.

This quadrilateral is also called a rectangle.