京

例句：

1. 1. 北京
   中国的首都
2. 2.京城
   指北京城
3. 3. 京都
   日本的古都
4. 1. The Great Wall is one of the wonders of ancient China.
   长城是中国古代的奇迹之一。
5. 2. Beijing is the capital of China and has a rich history.
   北京是中国的首都，有着丰富的历史。
6. 3. The Japanese Emperor lived in Kyoto, which is known as the "Kingdom of Heian."
   日本天皇曾居住在京都，被称为平安时代。