How many kinds of lessons do they have in a week?翻译

How many kinds of lessons do they have in a week?翻译
How many kinds of lessons do they have in a week?翻译

How many kinds of lessons do they have in a week?翻译
他们一周要上几门课.

他们每周上几节课

他们每周有几种课?

“在他们犯错的时候总是找各种理由” week是弱的意思。。。

他们在一星期内有多少种课

你每周有几门课？

他们一个周有多少种类型的课程？

他们一周内有多少种不同课程？