Rollerblade
noun [ C usually plural ] trademark uk/ˈrəʊ.lə.bleɪd/ us/ˈroʊ.lɚ.bleɪd/
旱冰鞋，滚轴溜冰鞋，轮滑鞋
a brand name for a boot with a single row of small wheels on the bottom that you wear in order to travel along quickly for enjoyment
Synonym: inline skate