由于人口不断从城市向郊区迁移，市中心或商业区的企业主经历了一些经济损失。

Business owners in the city centers or the downtown areas have experienced some financial losses, because of a steady movement of people out of the cities and into the suburbs.

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这个研究将主要住宅区火灾损失的金额与它们到最近消防站的距离关联起来。

This study correlates the amount of fire damage in major residential fires to their distance from the nearest fire station.

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每年都会发生许多大地震，偶尔会在人口密集区发生并造成重大损失——这完全是一个概率事件。

We get a lot of big quakes every year, and occasionally those hit near population and cause damage — it's mostly a matter of chance.

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