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如今，我们的世界生机盎然，随处可见活着的生灵。那么请想象一下所有这些生命有95%在一瞬间遭到了毁灭。这不是虚构的故事，它确实发生过。就在3亿年前的二迭纪，地球上还是一片丰饶繁荣的景象，然而2亿5千万年前的一场神秘事件导致了95%的物种灭绝，称为二迭纪生物大灭绝。这个凶残的杀手究竟是谁？是剧烈的地质运动、气候灾变，还是来自外太空的天体碰撞？为此，科学家们展开了一系列调查，试图解开“地球劫难日”惨剧背后的真相。
n. 根据，证据
v. 证实，证明
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- This quartz had a very strange set of parallel fracture-like fused planes, running through it at several angles.
- 这种石英中有非常奇怪的平行裂丝状结构，从各个角度贯穿晶体。
- Something had shuttered the quartz.
- 看来有什么东西破坏了石英。
- Retallack knew that only a force of enormous size could create these patterns.
- Retallack很清楚只有强力冲击才会造成这种纹理。
- It seemed there must have been a huge meteor.
- 看起来这必定是大型天体所为。
- It looks as though he had found the traces everybody had been looking for.
- 他似乎已找到了所有人梦寐以求的线索。
- Yet again, something didn't fit.
- 可是新的问题又出现了。
- As Retallack looked further at the new evidence, there was a surprise.
- Retallack深入研究这些证据后有了惊人的发现。
- The meteor that had wiped out the dinosaurs had left huge quantities of shattered quartz.
- 消灭恐龙的陨石留下了大量的破碎石英。
- It had also left traces of a metal mainly found in outer space called iridium.
- 还带来了主要存在于外太空的金属元素，铱。
- It's a common component of meteors.
- 陨石中通常都有这种成分。
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