| 单词 | frog shell |
| 释义 | Definition of frog shell in English:frog shellnoun
OriginMid 19th century; earliest use found in Samuel Woodward (1821–1865), naturalist and palaeontologist. Definition of frog shell in US English:frog shellnoun
OriginMid 19th century; earliest use found in Samuel Woodward (1821–1865), naturalist and palaeontologist. |
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