| 单词 | air-stone | 
| 释义 | Definition of air-stone in English:air-stonenoun 
 OriginEarly 17th century; earliest use found in Thomas Wright (d. 1624). Definition of air-stone in US English:air-stonenoun 
 OriginEarly 17th century; earliest use found in Thomas Wright (d. 1624).  | 
	
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