白天到河里捞沙，晚上爬进桥孔，冬天风雨潇潇常在半夜把他们冻醒，但这总比在家里受穷好。
B-Time I-Time O B-Location I-Location O O O B-Time I-Time O O B-Location I-Location O B-Time I-Time B-Thing I-Thing O O O O B-Time I-Time I-Time B-Person I-Person O O O O O O O O B-Location I-Location O O O O