都可以提供网络服务能力，比如DHCP和DNS。
Both provide capability to perform network services, such as DHCP and DNS.
再举个例子，如果你在硬件上花费一大笔钱来提升你网络服务的能力，那么将会使你的现金流下降。
Let's say you are spending a boatload on hardware to ramp up your web service's capacity. And it is bringing your cash flow down.
亚马逊网络服务系统将其庞大数据中心的计算能力出租给客户，赢的了物美价廉的声誉。
Amazon Web Services (AWS), which rents computing capacity inits giant data centres to customers, has also won a reputation for being cheap.
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