arcana
[ɑ:rˈkeɪnə]
n.
奥秘,艰深的知识,秘方;
秘密,奥秘( arcanum的名词复数 );
例句:
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R. V. Jones, the great panjandrum of the arcana of scientific intelligence.
来自Nature
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Matier : It'seemed that you obtained the final ARCANA.
看来你找到最后的阿卡那祭器了.
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The other day he was delving into the arcana of value-at-risk models.
来自THETIMES
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The comfortable arcana of ecclesiastical snuggeries.
来自A. Trollope