The lens of this camera is easy to attach and remove.

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 human immunodeficiency virus destroys the immune system, making the body unable to fight disease.

It is important to learn about the prevention and treatment of the human immunodeficiency virus.

He put the tea on the small table.

This software has forward compatibility.

He has a deep interest in avant-garde art.

Tan like libraries.

My dream is to go to France someday.

I heard the sound of cicadas in the park.