In this chemical reaction, hydration plays an important role.

This area is rich in subterranean rivers, which serve as a source of groundwater.

I decided to celebrate her birthday.

My house is in the north of Japan.

I am interested in the culture of Northern Europe.

The headquarters of my company is in Tokyo.

I offer prayers to Buddha every day.

He hung up his coat on the hook.

I will go on a trip to Hokkaido next week.

We are at a point of 45 degrees north latitude.