"After reviewing many terrific candidates, I am certain that she is the right choice,".

VOA: standard.2009.05.30

I am certain we would know that George Washington was the commander of our forces in our battle.

我十分确信你们都知道,乔治·华盛顿是战时美国军队的指挥官

耶鲁公开课 - 古希腊历史简介课程节选

And I get down to a certain card and I am stumped, so I will leave a space waiting for that card to appear on cue.

我遇到某张牌,会被困住，我会留些地方给,恰好要出现的牌。

麻省理工公开课 - 固态化学导论课程节选

"I think the most difficult thing will be to be separated from the people that I am used to, and leaving behind some of the habits - all our activity will be directed towards a certain goal."

VOA: standard.2010.06.02

And so, in certain contexts, I'm perfectly comfortable--in my physicalist moods, I am perfectly comfortable--talking about this person's soul.

而且,在某些情况下,依照我这个物理主义者的心情,我感到很惬意,探讨人的灵魂,我也感到很惬意

耶鲁公开课 - 死亡课程节选

Projection is, I have certain impulses I am uncomfortable with, so rather than own them myself, I project them to somebody else.

投射是指人们将自己不想拥有的,某种令自己不能容忍的冲动，投射到别人的身上。

耶鲁公开课 - 心理学导论课程节选