Key words dash/world record/hurdles/gold medal/marathon/high jump/javelin throw Vocabulary Dash:猛掷，冲撞 hurdle: 障碍，跨栏 Javelin: 标枪 Jamaica/Morocco/Bulgaria/ Ethiopia/Cuba/Soviet Union/Czech Republic B Key words dash/ world record/ hurdles/ gold medal/ marathon/ high jump/ javelin throw Vocabulary Dash：猛掷，冲撞 hurdle：障碍，跨栏 Javelin：标枪 Jamaica/ Morocco/ Bulgaria/ Ethiopia/ Cuba/ Soviet Union/ Czech Republic