cannonball
noun /ˈkænənbɔːl/
/ˈkænənbɔːl/
- a large metal or stone ball that is fired from a cannon
（用旧式大炮发射的）铁弹，石弹 - Cannon were used to shoot cannonballs directly into castle walls.
大炮被用来直接向城堡墙壁发射炮弹。
- Cannon were used to shoot cannonballs directly into castle walls.