一亿两千万年前，白垩纪的海洋覆盖着现在的澳大利亚南部，一条鱼龙（注：一种类似鱼和海豚的大型海栖爬行动物）经历了十分糟糕的一天。
One hundred and twenty million years ago, when a Cretaceous sea covered what is now South Australia, an ichthyosaur had a really bad day.
一亿两千万年前，白垩纪的海洋覆盖着现在的澳大利亚南部，一条鱼龙（注：一种类似鱼和海豚的大型海栖爬行动物）经历了十分糟糕的一天。
One hundred and twenty million years ago, when a Cretaceous sea covered what is now South Australia, an ichthyosaur had a really bad day.
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