Health Emergency in Large Population 密集人群卫生应急
The city had a large foreign-born population (26.5 percent in 1990), leading to broader diversity, which, the Harvard and Berkeley economists say, is a good predictor of mobility.
这座城市一直以来都有大量的外国出生人口(1990年比例为26.5%),进一步增强了人口多样性。哈佛大学和伯克利大学的经济学家认为,这预示着良好的流动性。
Astronomers have long speculated that the missing baryonic mass might eventually be discovered in intergalactic space or as some large population of galaxies that are difficult to detect.
天文学家长期以来都在推测,最终可能会在星际空间或者是在难以探测的大量星系中发现丢失的重子质量。
It is in no one's interest to keep a large segment of the population on the margins of society.
将极大一部分人置于社会边缘不符合任何人的利益。
Unless slavery could spread,they said, the slave population in the South would become too large.
VOA: special.2009.07.16
You're not intervening with people, you're observing usually large numbers of people in a population.
不干涉他人生活,只是观察一个人群中的许多个体
That explains, in large part, why there was such a decline in population, why the Dark Ages were so dark, lots of poverty, lots of starvation, but also, as I suggested when I spoke of this earlier, also the freedom if you could make it, to learn and also to grow stronger.
这解释了,在绝大部分地区,为什么存在着这一类的人口消减,为什么黑暗时代如此黑暗,如此贫困,如此多的饥荒,但是同时,就如在我之前所提到的,同样可以,如果做得到的话,去学习以及使自身强大
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