柯林斯詞典megacity /?m?ɡ??s?t?/ 1. N a city with over 10 million inhabitants ( 超過1000萬人口的)大城市 返回 megacity劍橋詞典a very large city , especially one with more than 10 million people living in it 巨型城市(人口超過一千萬的城市) 返回 megacity