据估计，我国城市化进程第一阶段还将持续30年。
He estimated that it would be another 30 years before the initial phase of China's urbanization is completed.
城市规模是我国城市化过程中至关重要的问题。
The city scale is an important problem in the process which citifies our country.
城市生活垃圾是我国城市化过程中的一大难题。
Urban domestic garbages are big problems in the process of urbanization.
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