roller-skate

不及物动词用滚轮溜冰

1. 滚轴溜冰鞋;（四轮）旱冰鞋
    Roller-skates are shoes with four small wheels on the bottom.

    e.g. A boy of about ten came up on roller-skates.
           一个10岁左右、脚蹬旱冰鞋的男孩滑了过来。

2. roller-skate是什么意思

2. 溜旱冰;滑旱冰
    If you roller-skate, you move over a flat surface wearing roller-skates.

    e.g. On the day of the accident, my son Gary was roller-skating outside our house.
           事故发生的那天，我儿子加里正在我们的房子外面滑旱冰。