It used to be a big, broad sheet and they made it smaller in 2005 and they started--they keep cutting out data.
曾经是很宽大的报纸,在2005年被缩小了,并且开始不断减少数据
And it's starting to give me problems. I've spent a lot of money in repairing it.
它开始故障不断,我已经在修理费上花了很多钱。
That made some populations mobile because they had to move from place to place to find food, but of course, it made starvation a very real possibility.
那样使得部分人口开始流动,人们不得不不断地迁徙,寻找食物,当然 自然灾害也造成了饥荒
As you get older, your human capital evolves and it has its ups and downs as you age and you start switching from human capital to other forms of capital.
随着年龄增长,你的人力资本不断发展,它随着你的年龄不断起伏,你的人力资本开始,转变成其他形式的资本。
So, you would grow these monkey kidney cells in culture, you would add some virus to the culture broth, the cells would become infected, the virus would go through its life cycle.
我们在培养基中培养这些猴肾细胞,然偶加入一些脊髓灰质炎病毒,这样细胞就会被感染,病毒开始不断繁殖
Like when they devised the first engines or the first nuclear reactors, it didn't work so well at first and then from the experience of many people working on it, over many years, a body of knowledge emerges and that's what we call technology.
这和发明出第一个发动机,或者第一个核反应堆时一样,最开始总是存在很多问题,但随着很多人不断努力去完善它,一种理论体系才得以不断发展,这就是我们所说的科技
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