Please close all the windows before the typhoon comes.

We have physical education classes every Friday.

His body shape is like that of a sports player.

I plan to travel to Taiwan next year.

The study of the continental shelf is an important field in oceanography.

I submitted a notice of withdrawal to the gym.

He body checked the opponent in the hockey game.

In the hockey game, he body checked the opponent.

Taisei is my best friend, and we always play together.

A new system has been introduced.