Cách sử dụng
A cannon is a big gun that shoots out heavy metal balls or explosive shells. They have been used in armies to destroy enemy fortifications, ships or vehicles. Today, cannons are still used for ceremonial purposes or demonstrations at historical sites, like firing a cannon to celebrate Independence Day or to honor a fallen soldier. The word cannon can also be used metaphorically to describe something that produces a loud, sudden noise or impact, like a cannonball hitting a target.