Read Edit View history 龙洞 lóngdòng cave Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 龙洞/龍洞 · lóngdòng · cave 2026/03/04 龙洞 / 龍洞 lóngdòng cave a cave or natural cavern, often specifically referring to one formed in limestone 这个龙洞深不见底，里面布满了奇形怪状的钟乳石。 noun created sense Mar 4, 2026, 02:25 AM