So if you have more conceptual oriented questions, you can absolutely bring them to office hours, but just realize there's always a crunch time wise, especially on Wednesday's and Thursday's.

如果有很多概念方面的问题，你完全可以把它们带到办公时间来，但是请认识到，总是有零零碎碎的时间的，特别是在周三和周四。

哈佛公开课 - 计算机科学课程节选