In particular,in Africa, you'd be worried about things like H.I.V.

VOA: special.2009.08.03

D-A-V-I-D I'm not hardcoding in D-A-V-I-D anymore but I can still use a variable.

我不再把名字写死为,而是用一个变量来代替。

哈佛公开课 - 计算机科学课程节选

Now you have to know from elementary calculus that v times dv/dt is really d by dt of v square over 2.

根据初等微积分知识你们得知道,v乘以dv/dt其实就是d/2)/dt

耶鲁公开课 - 基础物理课程节选

On Monday,Washington,D.C., health officials reported shocking information about H.I.V.

VOA: special.2009.03.20

D-A-V-I-D It's not copying the F-O-O or the D-A-V-I-D.

它不是复制F-O-O，或者。

哈佛公开课 - 计算机科学课程节选

Now, I hope you guys know that much calculus, that when you take a derivative of a function of a function, namely v square over 2 is a function of v, and v itself is a function of t, then the rule for taking the derivative is first take the v derivative of this object, then take the d by dt of t, which is this one.

我希望你们了解更多的微积分知识,当你对复合函数求导时,也就是说v^/2是关于v的函数,而v本身是关于t的函数,求导的法则应该是,第一步是这一部分对v求导,然后v再对t求导,得到这一部分

耶鲁公开课 - 基础物理课程节选