For this role,Elizabeth Taylor gained a great deal of weight in order to look the part of the aging wife of a college professor.

VOA: special.2011.04.03

Like somebody, for example, who has got extremely low weight might be that, and that explains part of it.

比如说那些体重非常轻的人,这解释了部分原因

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

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