退三步，進九步，平均等於每次各進三步，不斷創新高。四月份退六步，五六七月份總共進十八步，還是創新高。

來源: 風城芝加哥於 2025-07-31 19:50:45 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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