1. Dinosaurs occupy a vaunted niche in the public mind; the very word conjures up images of gargantuan, now-defunct beasts that ruled the Earth long ago, holding a reign of terror for some 160 million years, and then mysteriously vanishing with only their titanic bones as evidence of their existence. 
   恐龙这一名词在人们的心目中占据着一个很夸张的地位，它几乎已成了庞大的代名词。这种现在已经消失了的动物曾在很久以前统治着地球，那个令人恐惧的时代延续了26亿年，然后它们就神秘地销声匿迹了，只留下那庞大的骨骼作为它们曾经存在过的证据。
2. Have they already gone? 
   他们都已经走了吗?
3. putting them in readiness. 
   一切都已经准备就绪。
4. Have they al ready go? 
   他们都已经走了吗？
5. It 's all over now. 
   现在已经都过去了。

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