bet n. =arrangment to risk money 赌博 make a bet on sth. with sb= bet on sth with sb. e.g. I made a bet with him on the match between my class and his. They made a 5-dollar bet on who would win the race.
make/have a bet 打赌 win/lose a bet 打赌赢/输了 accept/take up a bet 同意打赌