The Mariana Trench is the deepest part of the earth.

Hiroshi is my best friend.

Digital terrestrial television broadcasting has good picture quality and high sound quality.

The house over there is very big.

His heart seems to have frozen.

His behavior was so cruel that I was at a loss for words.

I plan to go to the People's Republic of China next year.

My friend came from the People's Republic of China.

The United Nations Environment Programme is providing solutions to global environmental problems.

The People's Republic of China is a major power in Asia.