| 单词 | black-backed | 
| 释义 | Definition of black-backed in English:black-backedadjective ˈblakbakt 
 OriginEarly 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From black + backed. With black-backed gull compare blackback. Definition of black-backed in US English:black-backedadjectiveˈblakbakt 
 OriginEarly 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From black + backed. With black-backed gull compare blackback.  | 
	
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