noun🔗Share奥秘, 玄机，秘术。 Specialized knowledge that is mysterious to the uninitiated."The ancient texts held the arcana of alchemy, secrets only understood by the most dedicated students. "这些古老的典籍蕴藏着炼金术的奥秘，只有最专注的学生才能理解其中的玄机。philosophyculturereligionmythologysupernaturalChat with AIVocabulary GamePractice Reading
noun🔗Share秘密，奥秘，玄机。 A mystery or deep secret."The old diary contained the arcana of her grandmother's hidden past, secrets she had never shared with anyone. "那本旧日记里藏着她祖母隐藏的过去的种种玄机，那些是她从未与任何人分享过的秘密。mythologyphilosophyreligionsoulsupernaturalabstractmindChat with AIVocabulary GamePractice Reading
noun🔗Share秘药，灵药。 An elixir or secret remedy."The old herbalist claimed her tea contained special arcana for a good night's sleep. "那位老药草师声称她的茶里含有能让人安睡的秘药。medicinesubstanceChat with AIVocabulary GamePractice Reading
