| 单词 | key groove |
| 释义 | Definition of key groove in English:key groovenoun Mechanics
OriginMid 19th century; earliest use found in Andrew Ure (1778–1857), chemist. Definition of key groove in US English:key groovenoun Mechanics
OriginMid 19th century; earliest use found in Andrew Ure (1778–1857), chemist. |
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