course

course[kɔ:s]
n. 课程，讲座，过程，路线，一道(菜)

例句与用法：The blood coursed through the arteries. 
血液在动脉血管中循环。
Events took their natural course. 
事态依自然进程发展。
Our course was straight to the north. 
我们是朝正北方向航行。