dumbadj.哑的；愚蠢的；不能说话的vt.使沉默dumbbell pile哑铃桩dumb as an ox很少讲话,沉默不语dumb question愚蠢的问题dumb creature牲畜dumb terminal简易终端,哑终端,低能终端,不灵活终端dumb variable[计] 哑变量dumb-waiter轻型运货升降机dumb-bidding秘密以最低价格竞争dumbbellshapedadj.哑铃形的dumb-madness[医] 麻痹型狂犬病