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| English | Chinese |
| built-up area Area which is full of houses, shops, offices and other buildings, with very little open space | 城市建成区 (建满了房屋、商店、办公室和其它建筑的地区，空地很少。) |
| non-built-up area Areas which are not intensely developed for housing, commerce, industry, etc. | 非建成区 (住宅、商业、工业等没有充分发展的区域。) |