The Red Cross is trying to get more young people involved in doing volunteer work.
红十字会正在努力让更多的年轻人参与志愿者工作。
What do you get when you cross a cow with a buffalo?
当你将一只奶牛和一只水牛杂交时你得到了什么?
The accused's lawyers will get a chance to cross-examine him.
被告的律师会有盘问他的机会。
"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
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
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。
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