cannon-ball service勾手大力发球;大力发球;勾手鼎力发球
cannon-ball tree圭亚那炮弹果木
twin-size Cannon ball bed双型加农球柱床
dtwin-size Cannon ball bed双型加农球柱床
同义词:cannonballcannon ballround shot
N-COUNT(可数名词) A cannonball is a heavy metal ball that is fired from a cannon. 炮弹