她在赌桌上押注红色数字，期待轮盘赌的小球能停在那里。

She bet on red numbers at the ___roulette table, hoping the little ball would land there.

这位工匠用滚轮工具在皮革上压出精美的花纹。

The craftsman used a ___roulette to imprint intricate patterns on the leather.