In Kenya,a project aims to educate girls about H.I.V.prevention while helping them stay in school during their monthly periods.

VOA : special.2009.03.16

H=qp The u plus p V. Delta H is equal to q V.

括号里面的就是H，等于u+pv，Δ

热力学与动力学课程节选 : 麻省理工公开课

Now, before, of course, in the first part of the class u we started out looking at u H and then looking at H not as functions of S and V or S and p, but as functions of temperature, mostly.

现在，在本课的前一部分,我们首先讨论了,然后讨论了,这两个量并未写成S和V或者S和p的函数，而是写成了温度的函数。

热力学与动力学课程节选 : 麻省理工公开课

The drug is nevirapine. If it is given within seventy-two hours after birth, it can often protect babies from H.I.V.

VOA : special.2010.05.24

But in the last twenty years, H.I.V.and the collapse of the Soviet Union helped raise death rates in thirty-seven countries worldwide.

VOA : special.2010.05.05