这支圆珠笔写起来非常流畅。

This ___rollerball writes very smoothly.

我们每周六晚上在体育馆玩轮滑球比赛。

We play ___rollerball matches at the gym every Saturday night.

这部电影展示了未来世界中的残酷滚球比赛。

The movie showcases brutal ___rollerball competitions in a futuristic world.