bet + money + on + something
常用结构，表示押注某物。
I bet $20 on the game.
我赌了20美元在这场比赛中。
有把握；敢肯定
Bets — third person singular of bet
下注；押注；断言；坚持认为；打赌般坚持；打赌
To be certain that something is true or will happen; to be able to count on it.
To be sure of something; to be able to count on something.
To place money into the pot in order to require others do the same, usually only used for the first person to place money in the pot on each round.
打赌般坚持
maintain with or as if with a bet
一般现在时
She often bets on horse races.
她经常赌马。
past
He bet all his money yesterday.
他昨天赌上了所有钱。
现在完成时
They have never bet on a game before.
他们以前从未对比赛下过注。
不规则动词，过去式和过去分词与原形相同。
She often bets on horse races and usually wins.
她经常赌马，而且通常能赢。
用法提示：这里 bet 用作动词，表示打赌、下注，后接 on 引出赌的对象。
AI contextual example
I bet him ten dollars that our team would win.
我跟他赌十美元，赌我们队会赢。
用法提示：此句中 bet 是过去式，表示与某人打赌，句型为 bet + 人 + 金额 + that 从句。
AI contextual example
He is betting all his savings on the stock market.
他正在把全部积蓄押在股市上。
用法提示：betting 是现在分词，表示正在进行的赌博或投资行为，后接 on 引出赌注的对象。
AI contextual example
常用结构，表示押注某物。
I bet $20 on the game.
我赌了20美元在这场比赛中。
常用结构，表示确信某事会发生。
I bet that she will come.
我打赌她会来。
表示与某人打赌。
He bet me $10 on the outcome.
他跟我赌10美元这个结果。
grammar · medium
易错句子I betted on the game.
正确表达I bet on the game.
bet的过去式和过去分词与动词原形相同，都是bet，不应加-ed。
grammar · medium
易错句子I bet the game.
正确表达I bet on the game.
表示‘在某事上打赌’时，bet后需接介词on再加名词。
在…上下赌注
He bet on the winning horse.
他赌赢了那匹马。
打赌…不会成功
Many people bet against the new startup.
很多人打赌这家新创公司不会成功。
打赌…
I bet that it will rain tomorrow.
我打赌明天会下雨。
下赌注
They bet money on the outcome of the game.
他们对比赛结果下了赌注。
下大赌注
He bet heavily on the stock market.
他在股市下了大赌注。
当然
Can you help me with this? "You bet!"
你能帮我这个吗？当然！
打包票
You can bet your bottom dollar that he'll be late.
你可以打包票他一定会迟到。
一切皆有可能（原来约定不再有效）
Now that he's resigned, all bets are off.
既然他辞职了，一切都不好说了。
我打赌你以为这首歌是关于你的
She sang, 'I bet you think this song is about you' to her ex-boyfriend.
她对着前男友唱道：‘我打赌你以为这首歌是关于你的。’
为此打赌
In High School Musical, Troy sings 'Bet on it' to express determination.
在《歌舞青春》中，特洛伊唱《Bet on it》来表达决心。
Dictionary facts from ECDICT, WIKTIONARY.