他住在市区。
但是如果他住在市区，不仅节省了每天的车费和精力，而且他可以有更多的时间和朋友在一起。
But if he lives downtown, it not only saves him much of the energy and money that was spent on daily travel, but also he can have more time with his friends.
他就住在商业闹市区，他拍了很多这一阶段的照片，所以，这是一个特别真实的商业区。
This was especially true downtown, where he lived for much of the period covered in the photographs.
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