slingshot/ˈslɪŋ.ʃɑːt/名词投射器;石弩;弹射器As a child, Tommy loved to play with his slingshot, aiming at cans and trees in the backyard.作为一个孩子,汤米喜欢玩他的弹弓,瞄准后院里的罐子和树木。想跟读,去练习