中文意思：
n.（有關某學科的系列）課程，講座；（大學中要進行考試或取得資格的）課程；（船或飛機的）航向，航線。
v.快速地流動；奔流。
讀音：英 [k?s]，美 [k?rs]
例句：
1、Aircraft can avoid each other by going up and down, as well as by altering course to left or right.
飛機可以通過上下升降和左右移動改變航線來避免相撞。
2、My best course of action was to help Gill by being loyal, loving and endlessly sympathetic.
我能給吉爾的最大幫助就是對他忠誠、關愛他並且永遠滿懷同情之心。
3、In the natural course of events cows would wish to be milked more than twice a day.
按照事情發展的自然規律，母牛每天應該擠奶兩次以上。
4、I'm shortly to begin a course on the modern novel.
我不久將要選修壹門現代小說課程。
5、Treatment is supplemented with a course of antibiotics to kill the bacterium.
治療期間輔以壹個療程的抗生素註射來殺滅細菌。