控制城市交通的新系统已经设计出来。
A new system has been devised to control traffic in the city.
城市规划师决定建一个地下排水系统。
The city planner decided to build an underground drainage system.
它们还将采用更有效的运输系统以改善城市绩效。
They would also employ more efficient transport systems to improve city performance.
但是快速公交系统不一定对每个城市都适用。
But bus rapid transit systems are not the answer for every city.
这项研究正在美国七个城市中的公立学校系统中执行。
The study is being carried out in public school systems in seven American cities.
好的交通系统能使城市更干净、更有效率，而且更便利。
Good transportation systems make a city cleaner, more efficient and more convenient.
还有一个额外的好处，那就是这个系统可以将城市废水净化，然后排放到大海里。
As an added bonus, the system purifies waste water now being pumped into the ocean.
一方面，蒙特利尔自行车分享系统拥有成熟的技术；另一方面，我们与各城市直接签订合同。
Public Bike System created a better technology. And we have direct contracts with the cities.
缺乏专业化、智能化的城市应急救援指挥系统；
Lack the specialized, intelligent urgent rescue command system of city
WikiCity是个想像中具有opensource即时系统的城市。
WikiCity is described as an open source real-time system for a city.
相形之下，只需不足1,000万美元，就能建成一套可以改变整座城市的自行车分享系统。
With bike sharing you can get a city-changing system for less than $10 million.
一个城市的生态系统是怎样的？
在一些城市，有一整个生态系统支撑着二奶产业。
In some cities, an entire ecosystem has sprung up to support the ernai industry.
在美国的大城市里，大多数都有很齐全的公共交通系统。
The public transportation systems in most big cities in America are very good.
也许因此引发洪水、城市和生态系统遭受破坏等后果。
Possible consequences include flooding and damage to both cities and ecosystems.
但这一举措同时需要造价高昂的电网系统，使其将电力输送到远方的城市。
But this also requires costly power grids to carry the electricity to the distant cities.
拐骗团体在买卖人口；这个城市似乎有着自己恐怖的生态系统。
The kidnapping gangs bought and sold people; it was like its own terrible ecosystem.
错过车站下车：如果你的城市有地铁或公交系统，那么你要错过你要到的车站，在前一站或其后一站下车，然后从那里走过去。
Skip the stop: If your city has a subway or bus system, skip your stop and get off at the one after (or before) and then walk from there.
另外一些城市也使用类似的冷却系统。
供水管网系统是城市的重要基础设施。
Water supply networks system is important infrastructure of city.
城市是一个极其复杂而且处于动态变化之中的巨系统。
The city is an extremely complex huge system, which is under dynamic changing.
你觉得这个城市的交通系统怎么样？
同时，城市又是一个破坏了天然自我更新系统的人类发明。
Meanwhile, city is also a human invention which destroys the natural self-renewal system.
滨海新区；城市公共设施；系统设计。
你真的要相信你的城市的水净化系统？
Do you really want to trust your city's water purification system?
这样就使得城市的防御系统更加完善了。
大多数的城市仍然连基本的污水处理系统都没有。
In most cities there was still a complete lack of even a basic sewage system.
优良的道路及铁路系统把这四个城市连接了起来。
优良的道路及铁路系统把这四个城市连接了起来。
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