The root causes of urban health problems are known.
城市卫生问题的根本原因众所周知。
It ONCE was thought that social problems could be solved with smart urban design.
灵巧的现代城市设计可以解决纷繁的社会问题，这种想法在过去曾经一度出现过。
If deal with these problems properly, urban land use of optimization will go to best.
处理好这些问题，也就实现了城市土地利用优化。
The urban public space is a complex system and it shows complex problems.
城市公共空间是复杂系统并表现出复杂性问题。
With the rapid development of the urban power system, some severe problems have come up.
随着城市电网建设的大规模开展，出现了一系列急需解决的问题。
The urban traffic jam problem is one of the important problems facing the world today.
城市交通拥挤问题是当今世界面临的重大问题之一。
There are tremendous problems of water environment in urban area in China.
我国城市水环境面临着巨大的问题。
There are two problems concerning the current power supply pattern of urban rail transit.
目前的城轨交通供电模式存在两个问题。
There are many problems with land utilization of urban land.
当前城市用地土地利用存在诸多问题。
There are many problems with land utilization of urban land.
当前城市用地土地利用存在诸多问题。
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