He is knowledgeable about human affairs.

Choosing a leader for the new project is very important.

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

He is suffering from inflammation of the renal pelvis.

Tsutomu vowed eternal love.

His room is full of heaps of books.

He intimidated me and demanded money.

He was arrested for intimidation.

Learning about the history of the Uyghurs is very interesting.

Because that book is popular, the publisher decided to reissue it.