如果你忽略1900年，你就可以通过观察最右边的两位是否都为零来判断某一年是否为闰年。
If you ignore 1900, you can figure out if a given year is a leap year just by looking to see if the rightmost two bits are zero.
在最右端，一位妇女从一栋着火的大楼掉下，惊声尖叫。
On the far right, a woman screams as she falls through the floor of a burning building.
通常，从右到左排列，最右边的数字是最低有效位。
Usually, you order them from right to left, with the right-most digit being the least significant digit.
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