cavernn.
英 'kæv(ə)n | 美 'kævɚn
中文n. 洞穴；凹处\nvt. 挖空；置…于洞穴中
洞穴；凹处
vt. 挖空；置…于洞穴中
词根词源
cavern (n.)late 14c., from Old French caverne (12c.) "cave, vault, cellar," from Late Latin caverna "cave," from Latin cavus "hollow" (see cave (n.)). In Old English such a land feature might be called an eorðscræf.
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