| 单词 | nickel-in-the-slot | 
| 释义 | Definition of nickel-in-the-slot in English:nickel-in-the-slotadjective US 
 OriginLate 19th century; earliest use found in Tacoma (Washington) News. Definition of nickel-in-the-slot in US English:nickel-in-the-slotadjective US 
 OriginLate 19th century; earliest use found in Tacoma (Washington) News.  | 
	
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