| 单词 | round-tripper | 
| 释义 | Definition of round-tripper in English:round-trippernoun ˌraʊndˈtrɪpə US 
 OriginLate 19th century. From round trip + -er. Definition of round-tripper in US English:round-trippernounˌraʊndˈtrɪpə US 
 OriginLate 19th century. From round trip + -er.  | 
	
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