资料来源 : WordNet®

crash course
     n : a rapid and intense course of training or research (usually
         undertaken in an emergency); "he took a crash course in
         Italian on his way to Italy"; "his first job was a crash
         course in survival and in learning how to get along with
         people"; "a crash programme is needed to create new jobs"
         [syn: {crash program}, {crash programme}]