英语语法分析

Defense Department computer network called ARPAnet, which stood for Advanced Research Projects Agency Network.

国防部的计算机网络叫做 ARPAnet，指代高级研究计划署网络。

The Internet had its origins in a 1969 U.S. Defense Department computer network called ARPAnet, which stood for Advanced Research Project Agency.

互联网最早起源于1969年美国国防部的电脑网络，被称为阿帕网，它代表高级研究项目管理局。

The same year, Arpanet ceased to exist.

同年，阿帕网停止使用了。