单词：Grumman
格鲁曼（美国安全公司）
单词：Grumman 相关文章
By Robert Raffaele Washington 28 March 2008 A U.S. defense contractor unveiled an anti-missile system this week that it claims worked properly on commercial cargo planes. Such high-tech devices, in the future, could save a plane full of passengers fr
发表于:2019-01-12 / 阅读(214) / 评论(0)
VOA标准英语2008年（三月）
VOA标准英语2008年（三月）