柯林斯詞典cannonball /?k?n?n?b??l/ (also cannon ball) (cannonballs) 1. N-COUNT A cannonball is a heavy metal ball that is fired from a cannon. 炮彈 返回 cannonball劍橋詞典a heavy metal or stone ball shot from a cannon （用舊式大炮發(fā)射的）鐵彈，石彈 返回 cannonball