Therefore the first bird that evolved into what we would call a chicken, probably in prehistoric times, must have first existed as an embryo inside an egg.
因此很可能在史前时代，第一只进化成为我们称之为鸡的鸟，应当首先是以蛋壳内的鸡胚形式存在。
'Maybe that explains why many meat-reducers are keen to call themselves vegetarians when even they must know that vegetarians don't eat chicken, Turkey or fish!
可能这就是为什么许多提倡少吃肉的人称自己是素食主义者的辩解，甚至他们必须知道素食主义者不能吃鸡、火鸡或者鱼！
Call it the chicken-and-egg debate of the addiction world: Cocaine addicts are known for being frenetic, but which came first, the behavior or the habit?
这是药物成瘾领域中所谓“鸡生蛋还是蛋生鸡的争论”：大家都知道可卡因成瘾者近乎发狂，但是行为和习惯到底哪一个先出现呢？
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