I made a frightening dream last night.

昨晚我做了一个可怕的梦。

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You might not expect such a frightening dream to be associated with something joyful.

你大概不会想到把这么可怕的梦和快乐的事联系起来。

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Nightmares interrupt that process; people usually wake up before the frightening emotion is resolved, so the dream keeps repeating.

但是噩梦打断了这个过程；人们通常在恐惧情绪抒解之前醒来，因此梦一直重复。

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