It also is possible, again it's just speculation, that population pressure might well be greater in the cities that did the colonizing.

再一次,只是猜测,也很有可能,这些进行殖民的城市,人口压力相对大

耶鲁公开课 - 古希腊历史简介课程节选

And these upheavals are leading to mass migrations, migrations of people.

这些急剧兴盛带来了大移民，人口的大迁徙。

耶鲁公开课 - 旧约导论课程节选

They all died. And it was--not everybody, but in France 1,500,000 people died, and that's a huge demographic chunk, it's like a big shark took a big bite out of your basic pyramid of your demographic tree.

都死了,的确是,倒不是所有人,但是在法国有一百五十万人阵亡,这在人口比例中占很大一部分,就好像一个大鲨鱼照着,人口树的基底咬了一大口

耶鲁公开课 - 1871年后的法国课程节选

So in a town that's the size of new Haven with a population of let's say 100,000 people in just the immediate New Haven area, there might be 20 of these instances of very severe form of polio per year, 20 crippled children would result.

在一个像纽黑文这么大的城市里,大约有十万人口,生活在纽黑文地区的人当中,每年可能就会有二十人,感染到这种急性传染病,可能会导致二十个孩子残疾

耶鲁公开课 - 生物医学工程探索课程节选

Now, of course, there are denominator issues here because we started with a much higher base rate than these other countries, but if you think about the size of the populations there, the number of people who are going to become diabetic in the next twenty-five years is really very frightening.

现在,当然这里存在着分母的问题,我国的增长基数比其他国家要大得多,因为一旦考虑到人口总量,在未来25年成为糖尿病人的人数,就非常非常的惊人了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选