农家院东西南三面院墙，全让母亲种上了豆荚，那些豆荚的秧和叶，重重叠叠，蜿蜒曲折，险象环生，你挤我我挤你，你压我我压你，你不让我我不让你，憋着劲儿赛趟儿，就连院子的大门楼子，它们也不放过，探头探脑地往上面爬，最后的结果是整个门楼子全成了它们的领地，甚至有些豆秧都伸到墙外的胡同里去了。
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