And nine hours a week of outside-the-class work.

每周还有九个小时的课堂外工作。

youdao

And nine hours a week of outside-the-class work.

每周还有九个小时的课堂外工作。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you are a resident of Minnesota, you agree that either (1) you will not take courses on Coursera, or (2) for each class that you take, the majority of work you do for the class will be done from outside the State of Minnesota.

FORBES: Minnesota Bans Free Online Education

Forty years ago, my Harvard Business school class focused very little on managing life outside of work.

FORBES: Crystal balls, marathons and big rocks: 3 metaphors for work-life balance

That statistic grossly under represents the huge amount of work that most teachers put in outside the school day (preparing class materials, marking papers, etc).

ECONOMIST: Letters