单词：built-up

中文含义：已建成的；人口密集的

英语词性：adjective

美式音标：/ˈbɪltˈʌp/

同义词：developed, populous, urbanized

易混淆单词：built-in, built-upon

双语例句：

The city has a built-up area of approximately 250 square kilometers. (这个城市的建成区面积约为250平方公里。)

The central business district is the most built-up area of the city. (中央商务区是城市最为人口密集的区域。)