• 超里

    wecfvbvt Mon, 29 Oct 2012 21:44:33 +0000

    [attachmen[attachment=9235]t=9235]

  • # 1

    wecfvbvt Mon, 29 Oct 2012 21:44:46 +0000

  • # 2

    氰醇镁铝 Wed, 31 Oct 2012 13:19:44 +0000

    太清楚以至于看不懂

  • # 3

    山埃 Fri, 02 Nov 2012 14:18:24 +0000

    那些字看不清啊...

  • # 4

    timothy Sun, 19 May 2013 10:26:53 +0000

    我明白了！Al+Zn==发功==Na+Lz