"There are concerns in most O.E.C.D.countries that the number of nurses is too small to respond to the demand.

VOA: special.2010.06.07

We notice that the value of E at r naught is negative, as it should be. It's a negative number.

我们主要到在r圈时E的值为负，和它本来的值一致，是一个负数。

麻省理工公开课 - 固态化学导论课程节选

So,if you take number one--but we don't have to go through them all and I assure you we won't--if you take number one, the Ain,a-i-n,it's named after a river; or if you take number two,the Aisne,a-i-s-n-e, it's named after a river; and how many hundreds of thousands of people died along there in World War One or,you take number three,the same thing,Allier.

如果你看第一个省,我向你们保证,我们不用挨个了解,看第一个省,安省,a-i-n,来自一条河的名字,或是第二个埃纳省,a-i-s-n-e,来自于一条河的名字,有成千上万的人在这里死于,第一次世界大战,第三个,阿列省

耶鲁公开课 - 1871年后的法国课程节选

And, that's equal to the product of e the proton number times e.

正等价于,质子数乘以。

麻省理工公开课 - 固态化学导论课程节选