| 单词 | pear thorn | 
| 释义 | Definition of pear thorn in English:pear thornnoun 
 OriginMid 19th century; earliest use found in Asa Gray (1810–1888), botanist. Definition of pear thorn in US English:pear thornnoun 
 OriginMid 19th century; earliest use found in Asa Gray (1810–1888), botanist.  | 
	
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