Coursenn.库尔森coursen.课程；讲座；过程；路线；一道(菜)v.跑过，穿过；追赶；快跑courses related课程设置course contents课程内容course resource课程资源course appraisal教学评估course text book课本course evolution课程演变course converter航路变换器course standards课程标准course of blocks砖的砌层courses position课程定位

1. The air line service is to operate daily.
   这条航线每天都有班机飞行。
2. The boat's going off course, we'll have to haul up.
   船要偏离航线了，我们得转向迎风行驶。