滑旱冰;滑轱辘;
例句:
Why are you roller-skating now, anyway?
无论如何,你为什么要现在滑冰 呀 ?
Today, roller skating is easy and fun.
现在, 穿四轮溜冰鞋滑冰,既容易又好玩.
Where do you go roller-skating?
你到哪里去滑旱冰 呢 ?