也门政府搜捕杀害美国人的元凶: yemen authorities search for grou behind u. s. deaths
美洲反对贩毒联盟: alianza americana contra el narcotrafico
突击: 1.(猛烈急速地攻击) make a sudden and violent attack; assault2.(加快完成) make a concentrated effort to finish a job quickly; do a crash job 短语和例子突击麦收 do a rush job of harvesting the wheat; 他在突击学习英语。