cannonball造句

This cosmic cannonball is challenging theories to explain its blistering speed.
这个宇宙加农炮正在挑战解释其起泡速度的理论.

Suddenly , a sporadic cannonball bombed in the battle field.
敌人已经在城下骂阵了,我们却还是按兵不动.

It must be a cannonball.
那一定是一发炮弹.

• #cannonball