【讲解】:有了过错而不改正,这才真叫过错呢。
要从最基本层面理解化学,我们必须观察分子中电子的舞蹈。#
"Sometimes the quietest illustrations speak the loudest."
Think wrongly, if you please, but in all cases think for yourself.
I'm not scared to walk this world alone.
大脑只是一大堆技巧的集合。