名词中文翻译
中文翻译：闰年
同义词：
['extra year', 'leap year']
例句：
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1. This year is a leap year because it has 366 days instead of the usual 365.
今年是闰年，因为它有366天而不是通常的365天。
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2. The extra day in February is a leap year for many countries.
二月的额外一天对许多国家来说是闰年。
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3. In some cultures, leap years are celebrated with special festivals and ceremonies.
在一些文化中，闰年被庆祝以特殊的节日和仪式。