"All of the major bridges that cross the Swat River have all come down, which meant we have not been able to get to the worst affected areas."

VOA: standard.2010.08.02

So, that's how far east they get and in time the Carthaginians also cross over into Spain and they control some portion of the Spanish coast closest to Africa.

这就是在东部,希腊人所能到达的最远之地,同一时间,迦太基人进入到西班牙,并控制了西班牙,靠近非洲的部分海岸

耶鲁公开课 - 古希腊历史简介课程节选

Well, a cross-sectional study would mean that you'd get a random group of the population and measure them in 1970 and then take another random group five years later and measure them, but it wouldn't be the same people necessarily, it would be different groups of people.

那么,横断面研究就是,1970年你在人群中随意选择一组人,并记录下相关数据,然后,五年后再随意选择一组人记录数据,但这不需要是同一组人,通常是不同的人

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"This is really designed to get us off the road network, to be able to go cross-country, to go the places that up-armored HUMVEEs go, not be stuck to the road network, which makes us predictable,".

VOA: standard.2009.11.02

So, the number of nuclei, 119 if we were to sit and count these as well, is 119. So, we'll multiply that by just pi, r squared, to get that cross-section, and divide all of that by 1 . 39 meters squared.

如果你们数的话，原子核的数是，我们用它乘以πr的平方，得到横截面积，除以1。39平方米。

麻省理工公开课 - 化学原理课程节选

"First of all, we're asking to organize a corridor, not simply open the border, but to deploy some forces, which could lead people out who cannot get out of their houses, who are under siege, to help them cross the border, at least into Uzbekistan because it is the nearest country."

VOA: standard.2010.06.15