But we're simply not as fast as we used to be.
然而,我们已经不像过去那样快了。
We probably can't be replaced by each other as we used to be.
我们大概再也不能像以前那样,成为彼此的不可代替。
Maybe we need another one or half century to be strong as we used to be, but how does a century look like when comaring with 5000 long history?
也许我们要再花个五十年一百年才能重现辉煌,但是这点时间在5000年时间面前算什么呢?
There's also a distant psychological relationship with it because we just aren't as concerned as people used to be about where it came from.
心理上的感觉也变得疏远,我们不像以前的人那样,关心食品源自何方
Humoral comes from the term humours and it used to be that we thought about disease as being caused by the balance of humours in our blood.
体液一词来源于体液学说,过去认为疾病的产生,与血中的体液平衡有关
As we'll talk about later in the class, the biodiversity has shrunk so what used to be hundreds of varieties of corn is now just a few.
像我们后面所要提到的,玉米种群的生物多样性已经从曾经的,几百种减少到了现在的几种
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