现在有农场收集牛屁，直接在当地用作燃料，既省钱又环保。

来源: SwiperTheFox 于 2023-09-28 12:01:14 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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现在有农场收集牛屁，直接在当地用作燃料， 既省钱又环保。