我們這兒，用1000加侖，要56美元，用30000加侖，隻要85美元。水量差30倍，費用隻差一點點

來源: tzbcwbc 於 2012-02-17 12:03:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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