| 单词 | lock spring | 
| 释义 | Definition of lock spring in English:lock springnoun 
 OriginMid 18th century; earliest use found in Proceedings Sessions Peace London & Middlesex. Definition of lock spring in US English:lock springnoun 
 OriginMid 18th century; earliest use found in Proceedings Sessions Peace London & Middlesex.  | 
	
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