您要查找的是不是：
- Exhaust gas has been incriminated in air pollution in cities. 废气已过视为城市空气污染的原因。
- It requires great efforts to clarify sewage in cities. 净化城市的污水需要很大的努力。
- People concentrate in cities not only to get jobs but to take advantage of cultural facilities. 人们聚集在城市不仅是为就业，而且是为享用文化设施。
- The bulk of the population lives in cities. 大多数人口居住在城市里。
- It is necessary to regulate the traffic in cities. 城市里需要整顿交通。
- MATCHING AND LEARNING IN CITIES: U. 城市经济学。
- How to Abate Traffic Noises in Cities? 如何降低城市机动车辆的噪声?
- Population and wealth are aggregated in cities. 人口与资产聚集于城市中。
- In cities they gathered in Chinatown. 他们聚集在城市的唐人街上。
- Mole crickets are rare in cities. 蛞蝼在城市并不常见。
- Vehicle garbage is the main Pollutant in cities. 汽车垃圾是城市重要的污染物。
- He got a plush job in City Hall after his father pulled strings. 他父亲利用私人关系后，他在市政府里谋到一个轻松的工作。
- This new motorcycle is really handy in city traffic. 这部新摩托车在市区的交通中很便利。
- It requires of us great efforts to clarify sewage in cities. 净化城市的污水需要我们很大的努力。
- They not only pollute the air in cities, but make them crowded. 汽车不仅污染城市空气，而且使城市拥挤不堪。
- The people supported the mayor, so he could called the tune in city matters. 人民支持市长，所以他能就市政事务发号施令。
- In cities,quite a few children take their mother's surname. 在中国城市，子女随母姓的现象已为数不少。
- The reform of china's medical care system in cities and towns. 中国的城镇医药卫生体制改革
- They not only pollute the air in cities,but make them crowded. 汽车不仅污染城市空气，而且使城市拥挤不堪。
- Conventional wisdom has it that riots only ever happen in cities. 人们普遍认为，只有城市里才发生暴乱。
