mysterious /mɪˈstirijəs/ adjective Learner's definition of MYSTERIOUS
[more mysterious; most mysterious]
: strange, unknown, or difficult to understand神奇的；未知的；难以解释的 -
the mysterious ways of nature自然的奥秘
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We heard a mysterious noise outside our tent.我们听到帐篷外有奇怪的声音。
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He died under mysterious circumstances.他的死因是个谜。
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A mysterious illness has been spreading through the city.一种奇怪的疾病在城市中蔓延。
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There's something mysterious about that old woman.那位老妇人有些神秘。
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Her behavior was very mysterious.她的举止很怪异。
◊ Mysterious people are often interesting because many things are not known about them.神秘的人通常很引人关注，因为他们总有许多不为人知的事情。
be mysterious
: to talk or behave in a way that makes other people feel that you must have a secret故弄玄虚