He is of the yellow race and has a deep understanding of Asian culture.

He took out a book from the bookshelf at the back of the room.

In this chemical reaction, ammonium is produced.

She is good at knitting and knits something new every day.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

The motto of this team is 'one for all, all for one'.

Please open this opaque sliding door and take a look at the room.

Chrysophyta perform photosynthesis underwater, supplying oxygen.

Zhenzong was a great emperor of China.

The United Kingdom of Great Britain and Northern Ireland is a country located in Europe.