Chungtu

例句：

1. 1.China is the world's most populous country.
   中国是世界上人口最多的国家。
2. 2.The Great Wall of China is one of the Seven Wonders of the World.
   中国的长城是世界七大奇迹之一。
3. 3. I want to visit China and experience its rich culture.
   我想去中国，体验它的丰富文化。