"About half of my soaps have no added essential oils, it's for people with very sensitive skin who want to avoid essential oils for any reason.

VOA: special.2011.03.09

So I have to take out what I think is the really essential part and cover them in the lecture.

所以我得选出我认为真正重要的部分,并在课上介绍这些内容

耶鲁公开课 - 基础物理课程节选

Well--just like we didn't have to follow the parts of the body that aren't essential for housing the personality.

我们不需要去管,那些对于储存人格特性并非必要的,身体部位。

耶鲁公开课 - 死亡课程节选

But shop owners say now they only see "essential customers" those who have to buy for the marriage of a son or a daughter.

VOA: standard.2009.09.19

Further, the nucleus is assumed to be the seat of the essential part of the mass of the atom, and to have linear dimensions exceedingly small compared with the linear dimensions of the whole atom."

进一步的，核被认为是,原子主要质量所在的地方，和整个原子线性尺度相比,核具有很好的线性尺度“

麻省理工公开课 - 固态化学导论课程节选

And it seems that if we accept the body view, we have to say being a person is not an essential property of being something like me.

似乎如果我们接受了肉体理论，就必须说作为一个人,并不是作为我的基本性质。

耶鲁公开课 - 死亡课程节选