| 单词 | pianola | 
| 释义 | pianola  (piːænoʊlə  ) Word forms:  pianolas   variable noun A pianola is a type of mechanical piano. When you press the pedals, air is forced through holes in a roll of paper to press the keys and play a tune.  [British, trademark]  And the resulting sonata was played in the gallery on a pianola.   Image of pianola     © Ronald Caswell, Shutterstock | 
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