我從國內買了一些竹筷子，用之前都會煮。前幾天煮出來水是黃色的，不得不煮了好幾遍。

來源: 數學委員- 於 2019-02-12 05:36:53 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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