为了修正这一误差，教皇规定大多数十几年(比如1700,1800及1900年)不能作为闰年。但是能够被400整除的世纪年数，比如2000年，就可以作为闰年。
To fix the problem, the Pope decreed that most century years (such as 1700, 1800, and 1900) would not be leap years. But century years divisible by 400, like 2000, would be leap years.
所有其余的偶数不能整除四个组三个。
All the rest of the even Numbers not divisible by four are in group three.
七是一个基数，就是不能被二整除的数。
Seven is an odd number; that is, it can't be divided by two.
为什么你不能访问一个4字节长的变量在未对齐地址（即不被4整除）一个内存访问，因为它与对齐地址的情况？
Why can't you access a 4 byte long variable in a single memory access on an unaligned address(i. e. not divisible by 4), as it's the case with aligned addresses?
为什么你不能访问一个4字节长的变量在未对齐地址（即不被4整除）一个内存访问，因为它与对齐地址的情况？
Why can't you access a 4 byte long variable in a single memory access on an unaligned address(i. e. not divisible by 4), as it's the case with aligned addresses?
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