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Leap year
01
闰年, 闰年（润年）
a year in every four years that has 366 days instead of 365
leap year
n
例子
We celebrate my birthday every leap year on February 29th.
The next leap year will be in 2024.
Because it's a leap year, February will have 29 days instead of 28.
Leap years help to keep our calendar synchronized with the seasons.
2020 was a leap year, so it had 366 days instead of the usual 365.
