[I,T] to risk money on the result of a race, game, competition, or other future event

下赌注; 与…打赌;

How much do you want to bet?

你想赌多少钱？

He bet me ￡10 that I wouldn't do it.

他和我赌 10 英镑，说我不会那么做。

She bet all her money on a horse that came last.

她把所有的钱都押在跑了最后一名的马上。

I wouldn't bet against him winning the championship this year.

我不会下注赌他今年拿不到冠军。

I bet, I'll bet [spoken]

you bet!, [spoken] used to emphasize that you agree with someone or are keen to do what they

suggest 的确！ 当然！ 一定！ 一点不错！:

'Going to the party on Saturday?' 'You bet!'

　“星期六去参加聚会吗？”“当然啦！”

you (can) bet your life / your bottom dollar, [spoken] used when you are sure that you know what someone will do or what will happen

确信，完全有把握:

You can bet your bottom dollar he won't be back.

他肯定不会回来了。

(do you) want to bet? / wanna bet?, [spoken] used to say that you think something that someone has just said is not true or not likely to happen

赌不赌？〔对某人所说的话表示怀疑〕:

'I'm sure Tom'll be here soon.' 'Wanna bet?'　

“我肯定汤姆很快就到。”“赌不赌？”

don't bet on it, I wouldn't bet on it, [spoken] used to say that you do not think something is likely to happen

不大可能，我认为不大可能:

He said he'd finish by tomorrow, but I wouldn't bet on it.

他说他明天之前完成，可我认为不大可能。

an agreement to risk money on the result of a race, game etc or on something happening, or the money that you risk

打赌; 赌金，赌注:

a ￡50 bet

50英镑的赌注

A few of us had a bet on who'd get married first.

我们中有些人打赌谁会先结婚。

We placed bets on three horses.

我们在三匹马上下了赌注。

Bookmakers are already taking bets on the outcome.

马票商已经开始接受对比赛结果的下注了。

If he scores now, I'll win my bet.

如果他现在进球，我就赌赢了。

your best bet, [spoken] used when advising someone what to do

最好的办法〔用于建议某人怎么做〕:

Your best bet is to put an advert in the local newspaper.

你最好是在当地的报纸上登一个广告。

The train might be a better bet.

坐火车可能更好。

a good / safe bet, an action or situation that is likely to be successful or does not involve much risk

保险（稳妥）的做法（情况）:

If you're looking for long-term growth, the government's own saving certificates are a pretty good bet.

如果你希望长期增值，政府的储蓄券是比较保险的。

it's a safe / sure / fair bet (that), [spoken] used to say that something seems almost certain

几乎不成问题:

I think it's a pretty safe bet that he'll get the job.

我想他得到这份工作应该不成问题。

my bet, [spoken] used when saying what you expect to happen in the future

我认为:

My bet is he'll be back this time next week.

我认为，下周的这个时候他会回来。

do sth for a bet, to do something stupid, dangerous etc to win money from someone or to prove that you can do it

为打赌而做某事，赌气做某事〔指为了赢钱或证明自己的能力而做出愚蠢或危险的事情〕:

He climbed the tree for a bet.

他跟人家打赌爬上了树。