But when you have a large population, well, the whole population can't just get up and move to follow a wild herd of animals.
但是当你所属的种群人数众多时,就不能整个种群一起追踪一群野生动物。
能站起来就走吗?
Unlike animals, plants can't just get up and move.
与动物不同,植物无法移动。
"In the United States, one is expected to go to high school for four years and you get a diploma just for showing up or attending.
VOA: special.2010.02.25
So if the waves are good out in front of the house, I just get up, walk across the street.
所以门前浪好的时候我就起来,过街冲浪。
I will just give you this one little slide so you get a sense of what we are up against.
这晨有一张片子,你会了解我们现在面临的是。
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