今天我们要一起学习不同种类的动物，例如恐龙。
Today, well today we're going to learn about different kinds of animals.
人们时常设想从地球上消失的动物，例如恐龙，有可能通过克隆技术使它们复活。
From time to time people suggest that the animals that have disappeared from the earth, like dinosaurs, can possibly be brought back to life through cloning.
例如，如果没有恐龙的灭绝，我们这些哺乳动物就不会有机会繁荣昌盛。
For instance, if it hadn't been for the extinction of the dinosaurs, we mammals would never have had an opportunity to flourish.
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