Fire and flood are two of humanity's worst nightmares.

大火和洪水是人类最可怕的两大梦魇。

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Nightmares do two things to us: first, the bad dreams themselves can make us scared or nervous.

恶梦对我们产生两种作用：第一，恶梦本身可能会让我们害怕或紧张。

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The study also found two thirds of mums and dads try to avoid stories which might give their children nightmares.

研究还发现，三分之二的父母尽量避开会让孩子做恶梦的故事。

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"I've had some horrific nightmares as an asset manager in the last two weeks of the year, and this smells like one of those years, " said James Paulsen, chief investment strategist at Wells Capital Management.

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The court heard Mrs Morgan spent nearly two months in hospital with prosecutors saying she suffered flashbacks and nightmares.

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Doug had a lot of nightmares when he was a baby, by which I mean between the ages of two and four.

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