vi.与…猛撞（cannon的过去式与过去分词形式）； 双语释义：n.(名词)[C]大炮; 加农炮; 机关枪 a large powerful gun, often fixed to the ground or onto a two-wheeled carriage or, in modern times, fixed to aircraft英英释义： cannon[ 'kænən ]n.a large artillery gun that is usually on wheelsheavy gun fi