有一年，邻居大塘婶娘的孩子出了天花，时值青黄不接，她家里已没粒米下锅，孩子的生命奄奄一息，处在绝望之中。
B-Time I-Time I-Time O B-Person I-Person I-Person I-Person I-Person I-Person O B-Person I-Person O O B-Thing I-Thing O O O B-Time I-Time I-Time I-Time O B-Thing I-Thing I-Thing O O O B-Thing O B-Thing O B-Person I-Person O O O O O O O O O O O O O O O