February 29th is called a leap day.
2月29日被称为闰日。
Scientists tell couples not to marry on a leap day.
科学家告诉情侣们不要在闰日结婚。
The reason for a leap day or a leap year is because our calendar does not follow the Earth's orbit around the sun exactly.
闰日或闰年出现的原因是我们的历法并不精确地遵循地球围绕太阳运行的轨道。
When overridden in a derived class, determines whether the specified date in the specified era is a leap day.
当在衍生类别中覆写时，判断指定纪元中的指定日期是否为闰日。
When overridden in a derived class, determines whether the specified date in the specified era is a leap day.
当在衍生类别中覆写时，判断指定纪元中的指定日期是否为闰日。
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