yes! two are the same depending on the materials you start with.

來源: 金筆於 2015-10-21 11:54:44 [檔案] [博客] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)

回答: Precipitation = extraction? ?? 老金看來你是個狡辯好手啊! 由行者一路歌於 2015-10-20 18:16:55

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