Jose Manuel Barroso, E.U.Commission President, "It is the first time for the European Union to take part in a World Expo outside Union's territory.

VOA: standard.2010.05.02

It was found in strain R, a particular strain of E.coli, and it was the first one found, There's a nomenclature that's evolved for this.

酶被发现于R菌株,大肠杆菌中一种特别的菌株,又是被发现的第一种内切酶,有一种专门为此制定的命名法

耶鲁公开课 - 生物医学工程探索课程节选

The first three letters of E. Coli are Eco, so Eco.

大肠杆菌的前三个字母是Eco,也就是酶名字中的Eco

耶鲁公开课 - 生物医学工程探索课程节选

We'll talk about the Battle of the Somme, s-o-m-m-e. And the Battle of the Somme, in the first day of the Battle of the Somme, the first of July, 1916, there were 20,000 British soldiers killed.

我们会谈到索姆河战役,s-o-m-m-e,在索姆河战役,开战的头一天,1916年七月一号,20000英军士兵阵亡

耶鲁公开课 - 1871年后的法国课程节选

So, let's go ahead and define our variables here, they should be familiar to us. We have the mass, first of all, me m is equal to m e, so that's the electron mass.

让我们继续定义这些常数,我们对这些应该都很熟悉了，首先，我们有质量，m等于。

麻省理工公开课 - 化学原理课程节选

I know the energy in this first pair would equal -e^2 That is just going to equal minus e squared over 4 pi epsilon zero r naught.

我们明白第一对的能量将会等于,等于,/4πε0，R圈。

麻省理工公开课 - 固态化学导论课程节选