| 词汇 | internal skeleton |
| 释义 | Definition of internal skeleton in English:internal skeletonnoun Zoology
OriginLate 18th century; earliest use found in George Adams (1750–1795). Definition of internal skeleton in US English:internal skeletonnoun Zoology
OriginLate 18th century; earliest use found in George Adams (1750–1795). |
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