the route or direction followed by a ship, aircraft, road, or river. "the road adopts a tortuous course along the coast"
noun [集合/集体] 课程；路线（course 的复数）
Courses range from cooking to computing. 课程从烹饪到计算机应用都有。
noun [专属名词] （Courses）（法）库尔斯（人名）
These are the courses presently available. 这些就是现有的课程。
