They all put a bet on the race.

他们都对比赛下了赌注。

Would you bet on the future of this man?

你要对这个人的未来下赌注吗？

He had a bet on the horses.

他在那些马上下了赌注。

Do you always have a bet on the Kentucky Derby?

你总是在肯塔基赛马大会上赌马吗？

We've got a bet on who's going to arrive first.

我们打了个赌，看谁先到。