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星期天,我和姐姐正在认真地做作业,突然听见外面有敲门声。我跑出去一看,原来是一只会飞的塑料袋在使劲地撞着门。
On Sunday, my sister and I are doing their homework, and suddenly I hear a knock on the outside. I ran out to see that the original is a flying plastic bags in the bumper door.