So, it's perfectly okay to be part of a collaboration, but you've got to make sure that you're pulling your weight.

所以,参与小组讨论是完全允许的,但你要保证你在其中有所作为

耶鲁公开课 - 基础物理课程节选

So, I'm not quite sure what the takeaway there is but realize you are perfectly welcome to shop and then still take the course.

虽然我也不清楚有什么外卖,但是你必须意识到商家是很欢迎您光临他的店铺的,而且希望你以后也一直光顾。

哈佛公开课 - 计算机科学课程节选

Can't have told that perfectly that story I'm sure so any questions?

我觉得我没有把这个事情讲得很完美,那么有什么问题吗？

哈佛公开课 - 计算机科学课程节选