这种想法出现于公元1800年左右，当时人口变得足够多，大约有10亿人，人类的活动开始能够改变环境。
The idea is that around the year 1800 CE the human population became large enough, around a billion people, that its activities started altering the environment.
许多越南人说，没有这种美味的食物，他们就不能开始新的一天！你在世界各地都能找到法式炸土豆，但比利时人会告诉你，这种受欢迎的街头小吃是他们而不是法国人在17世纪发明的。
Many Vietnamese people say they cannot start the day without this delicious food! You can find French fried potatoes all over the world, but as Belgians will tell you, they, not the French, invented this popular street food, back in the 17th century.
开始时人们心中充满了惊恐，同时也搀杂着一种骇人的得意劲头。
A beginning full of terror, in which is mingled a sort of formidable gayety.
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