He is a famous science researcher.

The nine-tailed fox is a legendary creature in Japan.

I decided to take a break.

Let's take a break after finishing work.

I decided to take a sick leave.

He lent the textbook to the underclassman.

Astronomers are studying the movement of the celestial sphere.

I look forward to playing casual amateur baseball with my friends on weekends.

I learned how to calculate definite integrals in math class.

The history of the German Empire is very interesting.