| 单词 | roll-around | 
| 释义 | Definition of roll-around in English:roll-aroundadjective ˈrəʊləraʊnd 
 Origin1920s; earliest use found in Popular Science Monthly. From roll + around. Definition of roll-around in US English:roll-aroundadjectiveˈrəʊləraʊnd 
 Origin1920s; earliest use found in Popular Science Monthly. From roll + around.  | 
	
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