Every Sunday, this street becomes a pedestrian-only street.

Above heaven and under heaven, his name is known.

According to Chinese mythology, the creation of heaven and earth represents the beginning of the universe.

He has astronomical knowledge.

This song is my favorite.

I bought stamps at the post office.

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.

To live is to fight.

This system transfers data using synchronous transfer mode.

Infrared astronomy plays a very important role in the study of the universe.