![Today,rollerskating(滑旱*)iseasyandfun.Butmanyyearsago,it...]( "Today,rollerskating(滑旱*)iseasyandfun.Butmanyyearsago,it...")
- 问题详情：Today,rollerskating(滑旱*)iseasyandfun.Butmanyyearsago,itwasn’teasyatall.Before1750,peoplenevertriedskatingonwheels.ThatchangedbecauseofamannamedJosephMerlin.Merlin’sworkwasmakinginstruments.Inhisfreetimehelikedtoplaytheviolin.Merlinwasaman...
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