bet vt. be sure I bet (that).(infml)I am certain i bet he arrives late he always does 我敢肯定他得迟到-他一贯如此 you bet(nfml) you may be sure(ofi)当然 Are you going to the match? You bet (i am) 你去看比赛吗?“当然(我去)! Ex我确信这个消息会使他们大吃一惊 I bet they were surprised by the news vtⅵ打赌,赌博【~(sth)( on sth)】 He spends all his money betting on horsesbet vt. be sure I bet (that)... (infml) I am certain: I bet he arrives late, he always does. 我敢肯定他得迟到--他一贯如此. you bet (infml) you may be sure (of it)当然: `Are you going to the match?‘ `You bet (I am)!’ “你去看比赛吗?” “当然（我去）!” Ex.我确信这个消息会使他们大吃一惊. I bet they were surprised by the news. vt vi. 打赌，赌博【~ (sth) (on sth)】: He spends all his money betting on horses