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。
But imagine doing crossword puzzles every day for 10 years, 1,000 years, a million years, a billion years, a trillion years.
但想象往后每天做填字游戏,玩上十年,一千年以至永远。
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