为什么带有羽翼的恐龙最后跃上蓝天变成了真正的鸟类，至今仍然是个迷。
Why feathered dinosaurs eventually took to the air to become true birds is a mystery.
把美国工业称为“等待最后审判的恐龙”的时候已来临。
Calling the us industry "a dinosaur" whose "day of reckoning" is coming.
把美国工业称为“等待最后审判的恐龙”的时候已来临。
Calling the us industry "a dinosaur" whose "day of reckoning" is coming.
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