1、The difference between roller skating and ice skating lies in the skating ground and skate, right?
不過現(xiàn)在花樣滑冰比速度滑冰更引人注目，它包括男女單人滑，雙人滑和冰上舞蹈。

2、A lot of people like roller skating very much, no matter you are a little child or an old man.
很多人非常喜歡輪滑，無論是小孩或老人，都對(duì)這個(gè)項(xiàng)目充滿了興趣。

3、You also know that roller skating is excellent exercise.
你也知道滑旱冰是很好的運(yùn)動(dòng)。