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| aperture; bore; form; hollow; kennel; loop; pertusion; tunnel; specu- | |||
| cavea | |||
| pit; scoop | |||
| holes | |||
| burrow | |||
| mouth; opening | |||
| howe | |||
| cave | |||
| excavation; porthole | |||
| bored | |||
| syringo- | |||
| cavity | |||
| hole; cave (穴); cavern | |||
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| caverna; cavitas; cavum | |||
| cavity | |||
| |||
| cavitas; cavity; cavum | |||
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| hollow | |||
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| den | |||
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| kennel | |||
| Chinese thesaurus | |||
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| 某些场合读数字时代替"0" (0的字形像洞) | |||
| 洞: 3691 phrases in 100 subjects |