capital city的用法和樣例：
例句
用作名詞 (n.)
- The two rivers meet near the capital.
這兩條河在首都附近會合。 - They're going to take a train to the capital.
他們打算坐火車去首都。 - Hangzhou is the capital city of Zhejiang Province.
杭州是浙江的省會城市。 - We measure the concentration of population around capital cities.
我們測量省會城市周邊的人口密度。
