projectile
n. 炮弹；抛射体；自动推进武器
adj. 可抛射物体的；供抛射用的；（触角等）能伸出的
复数 projectiles
例句
Therefore, it is unlikely that the projectile launched was a satellite.
因此，这个发射并不像是一个卫星。
Avoid projectile toys, such as darts, bows and arrows, and missile-firing toys.
避免投射类的玩具，例如飞镖，弓和箭以及点燃弹射类的玩具。
A projectile, in other words, travels the farthest when it is launched at an Angle of 45 degrees.
换句话讲，一个做抛物体，在它的发射角度是45度的时候飞的最远。
