为了帮助地址转换，操作系统通过一个叫做转换后援缓冲（Translation Look-aside Buffering，TLB） 的进程来缓存已转换的内存地址。
To help address translation, operating systems cache the translated memory addresses by a process called Translation Look-aside Buffering (TLB).
至少，帮助页面还有个联系电子邮件地址，但我们至今都没收到任何回应。
At least the help page has a contact E-mail address, but we have received no response as of yet.
使用主机名对于用户来说很有帮助，因为他们不需要记住不同的IP地址。
Using host names is helpful for users, because they don't need to memorize difficult IP addresses.
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