do something for a betDGGto 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. 他爬树是为了打赌。
do something for a bet• It was this book that Rincewind had once opened for a bet.
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