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NO-BOOK口语提高版Lesson169:打赌文本：Lesson6Bet1.Mybetishe'llshowupontime!2.It'sasafebetthathe'llwin.3.Icanbetmylifeonit.4.Wanttomakeabet?5.IbetIcanhelphim.6.Youbetyourboots,we'llfollowt...