事实上，在一些国家，人们买不起自家农场种植的粮食——这是上学期的内容。
The fact that in some countries, people can't afford the food grown on their own farms—that was covered last term.
当客户机发出对web页面的请求时，服务器农场(farm of server)可以提供所需的内容。
As clients make requests for Web pages, a farm of servers can serve up the necessary content.
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