10年前,美国航天飞机“挑战者”号升空后爆炸,机上七名宇航员全部遇难。美国人每每想起那场悲剧,心里就感到一阵灼痛。各新闻媒体对那次事件已经做过连篇累牍的报道。不少人还在广播电视里发表谈话,讲述当时的情景,分析事故的原因。然而,七名宇航员家属的 Ten years ago, the U.S. Space Shuttle Challenger exploded after it was launched, killing all seven astronauts on board. Americans often think of that tragedy, my heart felt a burning sensation. The news media have done a lot of reports on that incident. Many people are still talking on radio and television, about the scene, analyze the cause of the accident. However, the families of seven astronauts