His research covers a wide range of topics.

Before starting a new business, he evaluated all the risks as if he were crossing a stone bridge by tapping on it, meaning he was very careful.

The doctor examined my perineum.

I have been to Wuhai city.

The White Sea is a sea located in the northern part of Russia.

Mr. Kaiboku is my best friend.

The common murre lives in the oceans of the Northern Hemisphere.

There are beautiful camellias blooming in my garden.

He learned about the naval battle in an old history book.

Kaisa is my best friend.