mystery的形容词形式：mysterious 神秘的；奇怪的；不易解释的；陌生的；诡秘的；故弄玄虚的；
派生词： mysteriously adv. mysteriousness n.
What happened to them remains somewhat of a mystery.
他们到底出了什么事，到现在仍可以说是个谜。
A mysterious illness confined him to bed for over a month
他得了一种神秘的怪病，卧床有一个多月。
The whole thing seems very mysterious
整件事情看起来都很蹊跷。
That expressionless face had seemed deep and mysterious.
那张毫无表情的脸看上去深沉而又神秘。
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