| 单词 | roller ski | 
| 释义 | roller skin.  Each of a pair of (usually small) skis, fitted with a small wheel at each end, and used for skiing on tarmac, grass, and other dry surfaces. ΘΚΠ society > leisure > sport > types of sport or game > winter sports > skiing > ski			[verb (intransitive)]		 > using specific type of skis roller ski1930 sit-ski1985 society > leisure > sport > types of sport or game > winter sports > skiing > 			[noun]		 > ski > type of roller ski1930 sit-ski1948 longboard1950 monoski1953 grass ski1970 snowblade1990 1930    Pop. Sci. Monthly Dec. 35/2  				Skiing on dry land, all the year 'round, is now possible with the recent invention of ‘roller skis’. 1978    Skiing Spring 58/1  				Roller skis don't have brakes. 1979    Capital Times 		(Madison, Wisconsin)	 23 Nov. 45/1  				That enthusiast was using rollerskis, a training tool champion skiers have employed for years to maintain form. 1991    Bicycling Feb. 44/1  				Roller skis or blades give the same benefit. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). roller skiv.  intransitive. To ski on roller skis. ΚΠ 1978    Skiing Spring 58/1  				Tim roller-skis about 1,500 km..between seasons. 1979    Capital Times 		(Madison, Wisconsin)	 23 Nov. 45/3  				How did Koch keep his top form over the summer? He rollerskied. 2002    U.S. News & World Rep. 21 Jan. 64/1  				Per Elofsson..trains by running through swamps and roller skiing up mountains. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). < | 
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