throw at / throw to 怎么区别?各举一例

throw at 所接的宾语是扔东西的目标,一般是物品
e.g.Stop throwing stones at that dog!别再向那条狗扔石子了!
throw to 所接的宾语是扔东西的接收者,一般是人
e.g.Throw the ball to your sister.把球扔给你妹妹.