n.桶( barrel的名词复数 )；枪[炮]管；一桶（的量）；桶（石油计量单位，相当于120 到159 升） 双语释义：n.(名词)[C]桶 large round container with flat ends and bulging in the middle, made of wood, metal or plastic[C]枪〔炮〕管 a long tube-shaped part of a gun英英释义： barrelsn.the amount that many barrels migh