noun🔗Share晶洞，矿瘤。 A nodule of stone having a cavity lined with mineral or crystal matter on the inside wall."Maria cracked open the plain-looking rock and gasped; inside was a beautiful geode sparkling with purple crystals. "玛丽亚敲开那块看起来很普通的石头，不禁倒吸一口凉气；里面竟然是一个美丽的晶洞，闪耀着紫色的水晶。geologymineralmaterialnatureChat with AIVocabulary GamePractice Reading
