我们都知道，猪流感病毒首先出现在墨西哥城市瓦卡(Perote)，该城有一个巨型集约化动物农场，畜养着95万头猪。
We know that the city where this swine flu first emerged - Perote, Mexico - contains a massive industrial pig farm, and houses 950, 000 pigs.
我们都知道，猪流感病毒首先出现在墨西哥城市瓦卡(Perote)，该城有一个巨型集约化动物农场，畜养着95万头猪。
We know that the city where this swine flu first emerged - Perote, Mexico - contains a massive industrial pig farm, and houses 950,000 pigs.
某种意义上说，是郊区化的出现导致了多中心城市空间结构的形成和巨型城市带的兴起，进而促进了大都市旅游带的形成。
To some extent, it was suburbanization that resulted in multi-center urban spatial structure and megalopolises, consequently accelerating the formation of metropolitan tourism belts.
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