那时候，母亲在璧山丹凤小学工作，学校是一座破庙改造而成的。
B-Time I-Time I-Time O B-Person I-Person O B-Location I-Location I-Location I-Location I-Location I-Location O O O B-Organization I-Organization O B-Metric I-Metric B-Location I-Location O O O O O O