网站是由成百万上千万的被叫做网页的文件组成。
The web is made up of millions of documents called web pages.
10年内 一定会有成百万上千万的新的人造有机体出现。
Within the next decade, millions upon millions of new synthetic organisms are sure to be created.
情况虽坏，还是有成百万上千万的阿富汗人从国外回到了国内。
Despite the poor conditions, millions of Afghans have returned home from abroad.
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