(每日一词）catapult

Catapult /ˈkæt̬.ə.pʌlt/ v. 投射器；石弩；弹射器, 弹弓; v. 把…射出，把…弹出

meaning: a device that can throw objects at a high speed 

meaning: to throw someone or something with great force 

1) 前缀: cata- 向下

2) 词根: pult- 扔，拉

e.g. When the two vehicles collided, he was catapulted forwards. 两车相撞时，他被甩向了前方。