- 问题详情:AnInvisibleSmileMr.Dawsonwasanoldgrouch,andeveryoneintownknewit.Kidsknewnottogointohisyardtopickadeliciousapple.OldDawson,theysaid,wouldcomeafteryouwithhisgun.OneFriday,12-year-oldJanetwasgoingtostayallnightwithherfriendAmy.TheyhadtowalkbyDaw...
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