She is really beautiful, isn't she?

Mr. Hei is my best friend.

Koukou is my best friend.

I live in Sumiyoshi.

The calculation of the coversine is an important part of trigonometry.

He picked up the remaining arrows and drew his bow again.

My personal thought is that everyone should be treated equally.

When I first met her, I introduced myself saying, 'I am Japanese.'

We prioritize customer satisfaction above all else.

We will do our best to solve this problem.