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在公共汽车上常常可以看到各种各样的父母与孩子的情景:一位母亲和孩子一上车就各占了一个座位,对后面上车的老人视而不见;一位父亲把孩子吃完的果皮随手一扔,
In the bus often see a variety of parents and children scene: a mother and child on the car each took a seat on the car behind the old man turned a blind eye; a father finished his child Peel throw away,