The British Competition Authorities estimated Google had as many as 600 billion web pages in its index, or about three times more than Microsoft, and Google has, as you said, huge teams handling search quality.

英国竞争管理机构估计谷歌在其索引中拥有多达 6000 亿个网页，大约是微软的三倍， 而且正如你所说， 谷歌拥有庞大的团队来处理搜索质量。