of course not

当然不是

Of course!

当然!

I’m taking an English course.

我正在上英语课。

golf course

高尔夫球场

The first course was a salad.

第一道菜是沙拉。

A: What do you think of this course? B: It’s highly useful for beginners.

A：你觉得这门课怎么样？ B：对初学者来说非常有用。