Exploratorium officials say their web site averages more than eighteen million visitors a year . that makes it one of the most visited museum web sites in the world.

探索博物馆的工作人员说他们的网页平均每年有超过一千八百万的浏览量。这使得其成为全球访问量最大博物馆网站之一。

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Exploratorium officials say their web site averages more than eighteen million visitors a year . that makes it one of the most visited museum web sites in the world.

探索博物馆的工作人员说他们的网页平均每年有超过一千八百万的浏览量。这使得其成为全球访问量最大博物馆网站之一。

youdao