Appassionate
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China
March 2, 2014
I had only a rudimentary knowledge of differential coeffeicient,but it is important.Now my head is reeling and I wanna go to bed…But I haven't finished my homework！！！
More entries: Beethoven Waldstein first movement, Cheer up, 不作死就不会死- - (1), Day day up~ (2), Freak out, Valentine's Day
