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.

He said, 'It's difficult to make a life,' explaining the phrase 'When a man steps over the threshold, he has seven enemies.'

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.

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.

Mr. Okuda is an insurance sales representative.