| 单词 | spring floor | 
| 释义 | > as lemmasspring floor   spring floor  n. a floor designed to provide a resilient, shock-absorbing surface. ΚΠ 1781    Morning Chron. 11 Sept.  				Spring floors and dancing shoes appeared every where. 1895    Strand Mag. Jan. 113/1  				In the Hall a spring floor has been laid over the ordinary hard oak boards. 2016    Club Industry 		(Nexis)	 12 July  				The center has a full-size swimming pool, a fitness room, gymnasium, multipurpose rooms and rooms with wood spring floors for dance classes. < as lemmas  | 
	
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