In fact, the Internet runs so well that it may take only a few seconds to send a file from one host to another, even though they are thousands of miles apart and all the packets must pass through multiple computers.

• 事实上，Internet运行得如此之好，使得文件从一台主机传送到另一台主机只需要几秒钟，尽管主机之间相距几千英里，而且全部报文分组必须通过许多台计算机。