+4 Because this could be three plus four, 3 times five, or it could be three, plus four times five.

因为这可能是，然后乘以5，也可能是，加上4乘以5。

麻省理工公开课 - 计算机科学及编程导论课程节选

And it's precisely for this reason that at least the soul, belief in the soul, combined with the soul theory of personal identity holds out the possibility of surviving my death.

就因为这个原因,至少灵魂，相信灵魂，在加上灵魂理论的人格同一性,建立起我不死的可能性。

耶鲁公开课 - 死亡课程节选

And in terms of using these equations in solving problems on the exam, and also using these constants, make sure if you think there might be any chance you're going to get any little part of a problem wrong or do a calculation inaccurately, you need to write out every single step of your thinking as you write out these problems.

而当你在考试过程中用这些公式,来解题时，加上运用这些常数，如果你觉得有可能,在某一小问上出错,或者出现计算错误，请务必把你的思路一步一步地都写出来,当你在答题的时候。

麻省理工公开课 - 化学原理课程节选