練器械的頭幾周進步很快，特有成就感。後麵就難了。

來源: greenonion 於 2016-09-28 12:45:54 [舊帖] [給我悄悄話] 本文已被閱讀：次

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練器械的頭幾周進步很快， 特有成就感。 後麵就難了。