If there were a practical way to list all of the domain names and IP addresses of every Web site on the Internet in a single file, we would not need the Domain Name Service (DNS).是什么意思_If there were a practical way to list all of the domain names and IP addresses of every Web site on the Internet in a single file, we would not need the Domain Name Service (DNS).在线翻译_英语_读音_用法_例句