城区的英文：
city proper

参考例句：

The spread of urban areas endangers wildlife.
城区的扩大危及野生动物。

A region remote from urban areas; backcountry.
腹地远离城区的地区，偏僻地区

They phoned to every ward and suburb.
他们给各城区和郊区打电话。

The whole urban sprawl of Ankara contains over 2.6m people.
安卡拉整个肆意扩展的城区容纳了 260 多万人口。

A few new major urban highways run parallel with the railway.
有几条新的主要城区的公路与那条铁路是平行的。

Especially in difficult urban areas or ecology-sensitive sites, segmental structures have proven to be a valuable asset
尤其是在施工困难的城区，或生态敏感的工地，分段式结构已经被证明是一种很有价值的技术。

The laser also can flexibly support missions on the battlefield as well as in urban operations.
激光器还可以在战场上或在城区中灵活地支持作战任务。

The present crunch on farming land is, according to experts, largely due to the urban sprawl.
专家们认为，造成目前耕地紧缺的一个主要原因是城区扩展。

"Dunmore:a borough of northeast Pennsylvania, an industrial suburb of Scranton."
"丹莫尔:美国宾夕法尼亚州东北部城区,为斯克兰顿的工业郊区."

In one large metropolitan area I sureyed, fewer than half the millionaires lived in high-rent districts
在一个大城市城区，也只有不到一半的百万富翁住在房费高昂的地区。

city是什么意思：
n. 都市，城市；特许市；全市居民；伦敦商业区；充满...的地方

the city of York
约克特许市.

beleaguer a city
围攻一座城市

The cleanliness of European cities puts our cities to shame.
欧洲各城市的整洁使我们的城市相形见绌。

The City Council has a manifold plan to Beautify the city.
市政府制定了一个美化城市的多重规化。

The army policed the conquered city.
军队管制这个被占领的城市。

proper是什么意思：
adj. 适合的；正当的；固有的；严格意义上的

Cheat's never proper.
欺骗决非正当事。

Action is the proper fruit of knowledge
行动是知识的巧果

They were in proper tennis whites.
他们都穿着可体的白色网球服。

I deem it proper to refuse.
我看还是拒绝为好。

One forth is a proper fraction.
四分之一是一个真分数。