IP地址用于两个主要功能：主机或网络接口标识和位置寻址。
An IP address serves two principal functions: host or network interface identification and location addressing.
在缺少主要新功能的情况下，雪豹带有微小改动的主机辜负了我们。
And in the absence of major new features, Snow Leopard lavishes us with a host of minor ones.
影响网络带宽的主要因素是在给定时刻使用网络的主机数量。
The major variable within network bandwidth is in the number of hosts using the network at any given time.
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