城区

běi jīng chéng qū

北京城区

Beijing proper

lǎo chéng qū

老城区

old town

chéng qū yǔ jiāo qū

城区与郊区

the city proper and the suburbs

gāi wèn tí xiān zài nèi chéng qū chū xiàn

该问题先在内城区出现。

This problem first appeared in the inner cities.

zhè xiàng kāi fā huì gǎi biàn chéng qū de fēng mào

这项开发会改变城区的风貌。

This development will alter the character of the town.