origin server

基本解释

If an representation is stale, the origin server will be asked to validate it, or tell the cache whether the copy that it has is still good.
如果缓存的副本已经太旧了，缓存服务器将向源服务器发出请求校验请求，用于确定是否可以继续使用当前拷贝继续服务；
The most effective solution is to change any links to them; that way, completely new representations will be loaded fresh from the origin server.
最好的办法是改变它们的链接，这样，新的副本将会从源服务器上重新下载。
Requests can be routed to gateway caches by a number of methods, but typically some form of load balancer is used to make one or more of them look like the origin server to clients.
请求有几种方法被路由到网关缓存服务器上：其中典型的是让用一台或多台负载均衡服务器从客户端看上去是源服务器；

Gamers struggled to download the game from the Origin servers and, once they had it, they struggled to find a server with enough room for them.
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