心理学家称几百万年的人类进化使大脑没有适应生活在成千上万的人群中。
Psychologists have argued that millions of years of evolution means the human brain has not developed to cope with life surrounded by thousands of strangers.
一百万年前“郧阳人”在这里迎来文明曙光。十堰出土的人类头骨化石堪称国宝。
The fossil of the pithecanthropus Yuxian Man cranium unearthed in Shiyan is considered as the national treasure.
位置固定的转位子第一次出现是在一百万年前，通过观察现在这些序列的排列顺序，科学家们就可以了解到那个时代的人口数量。
One particular transposon first appeared about a million years ago. And by seeing where these sequences now sit, scientists can get a sense of the size of the breeding population back then.
应用推荐