WORD BY WORD
cave
英
美/ˈkeɪv/
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01n.
洞, 穴
a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea
02v.
凹陷, 塌落
hollow out as if making a cave or opening; explore natural caves
03v.
挖洞, 使凹陷, 损坏...的基础
hollow out as if making a cave or opening; explore natural caves