coursesn.课程；路线（course的复数）coursen.课程；讲座；过程；路线；一道(菜)v.跑过，穿过；追赶；快跑course correction方向修正量Course connection课程衔接courseware system课件系统course of science科学教育课程Course innovation课程改革Course navigation课程导航course protractor航向分角器course of working加工过程course of disease病程course of meiosis减数分裂进程