不要赌马，你肯定会输的。

Don't bet on horse RACES, you must lose.

youdao

我知道你来不及再找一名守门员了，所以我明天还是参加比赛，但如果我们输了——我们肯定会输的，我就自动离开球队。

I know you haven't got any time to find another Keeper, so I'll play tomorrow, but if we lose, and we will, I'm taking myself off the team.

youdao

而且，我们相信如果你经常觉得你会输，那你肯定会败。

Also, we've always believed that if you think you're going to lose, you're already defeated.

youdao