我打算帮助清理城市公园，让环境变得更好。
I plan to help clean up the city parks to make the environment better.
由于城市环境变得更加错综复杂，这就要求我们用新的方法去研究城市怎么能更好的运转——让城市变得更加适合人们居住。
As urban environments become ever more complicated and interconnected, they present us with new opportunities to study how they work - and to make them better places to live in.
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