| 单词 | key-bone |
| 释义 | Definition of key-bone in English:key-bonenoun
OriginLate 18th century; earliest use found in William Cowper (1731–1800), poet and letter-writer. Definition of key-bone in US English:key-bonenoun
OriginLate 18th century; earliest use found in William Cowper (1731–1800), poet and letter-writer. |
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