cannonballWiktionary 原文/ˈkænənˌbɔːl/n.炮弹中文释义来自 ECDICT构词拆解cannoncannon词干ballball词干词源说明From cannon + ball from being a round ball that is fired from a cannon.释义名词noun1(military, weaponry) A spherical projectile fired from a smoothbore cannon.2(military, weaponry) An explosive-filled hollow iron sphere fused through a hole and intended to explode at a calculated distance rather than explode on impact.3(diving) The act of jumping (typically into a