arcane
/ɑɹˈkeɪn/ 形容词 C2中文： 神秘的、晦涩难懂的、秘密的
- Understood by only a few. · arcane rituals· arcane knowledge
- Obscure, mysterious. · arcane origins· arcane details
- Requiring secret or mysterious knowledge to understand.
- Extremely old (e.g. interpretation or knowledge), and possibly irrelevant. · an arcane law
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