| 单词 | piano key | 
| 释义 | Definition of piano key in English:piano keynoun pɪˈanəʊ ˌkiː 
 OriginEarly 19th century. From piano + key adjective. Definition of piano key in US English:piano keynounpɪˈanəʊ ˌkiː 
 OriginEarly 19th century. From piano + key [adjective].  | 
	
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