and right now, it has just detected its main course. 现在 它刚刚发现了自己的主菜
Swim, of course. 当然是游过去
Nectar was an excellent first course for the lemurs 花蜜是鼠狐猴的美妙的饭前点心
its course is altered. 就会改变路线
The shark is faster on a straight course 鲨鱼的直线速度更快