You can talk about working hard on your joint problem sets, but as long as you go home and you don't work hard, it doesn't help.

你大谈特谈你在多么努力地做家庭作业,但是回家后如果你依旧偷懒,这还是无济于事

耶鲁公开课 - 博弈论课程节选

you can talk to them about problem sets or questions that you've been having about class work.

然后你就可以和他们讨论你在学习中遇到的问题了。

与教授的面谈 - SpeakingMax英语口语达人