- For the inhabitants of Earth's once tropical waters,
过去地球上热带水域的“居民们” - this was a catastrophe.
大难临头 - The shallow seas became a frozen graveyard.
浅海变成了冰冻的坟墓 - The world's first mass extinction.
这是世界上第一次大规模灭绝 - The fatal freeze was caused by a 60% drop in carbon dioxide.
致命的冰冻 是由二氧化碳减少60%所导致 - Without this greenhouse gas to warm it,
没有了温室气体保暖 - the planet was plunged into an ice age.
地球突然陷入冰河期
The world's first mass extinction. 这是世界上第一次大规模灭绝
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