| 单词 | day-old | 
| 释义 | Definition of day-old in English:day-oldadjective 
 noun 
 OriginMid 19th century; earliest use found in John Wilson. Definition of day-old in US English:day-oldadjective 
 noun 
 OriginMid 19th century; earliest use found in John Wilson.  | 
	
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