The calculation of the spherical angle is a part of geometry.

He is in the same position as his friends.

The reindeer's antlers have a beautiful shape.

He flipped the pages of the book.

He won in Mahjong with the Yakuman hand of Suuankou Tanki Machi, and the number of Han was 13.

Fundamental interaction is one of the most important forces in physics.

My Keeshond is very smart.

The prime meridian is the line that serves as a reference for determining the longitude of any point on Earth.

According to the Imperial Headquarters announcement, the war situation is progressing favorably.

We need to solve the problem in the production environment.