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"The hardest thing in life is to know which bridge to cross and which to burn."
The moment you start to think about style, you're lost.
函数是一种对应规则,通过它当给定任何东西(作为参数)时,可以获得另一个东西(该参数的函数值)。
The existence of a legal system is a matter of fact, not of morality.