| 单词 | raven's duck | 
| 释义 | Definition of raven's duck in English:raven's ducknoun historical 
 OriginMid 18th century; earliest use found in Gerard G. Beekman (1719–1797). From the genitive of raven + duck. Definition of raven's duck in US English:raven's ducknoun historical 
 OriginMid 18th century; earliest use found in Gerard G. Beekman (1719–1797). From the genitive of raven + duck.  | 
	
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