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我明白了你不可能同时拥有一切并做所有事情。
I've learned that you can't have everything and do everything at the same time.
Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.
"Language is the house of being. In its home man dwells."
每个人的生命都是上帝用手指写下的童话。
La palabra es el arma más poderosa que tenemos para cambiar el mundo.
孩子有超强的记忆力,当孩子可以动手操作而仅用眼看时,会记得更好。