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n. 巨穴, 洞窟, 深处
vt. 放于山洞中, 挖空

n. any large dark enclosed space
n. a large cave or a large chamber in a cave
v. hollow out as if making a cavern

复数: caverns 现在分词: caverning 过去式: caverned 第三人称单数: caverns 过去分词: caverned