闰年的例句（闰年在句子中的用法）

• Leap year is the year when February has 29 days. 二月里有29天的月份是闰年.
• A leap year has 366 days. 闰年有366天.
• Leap year recurs every four years. 每四年闰年一次.
• A leap year is an intercalary year. 闰年是“插进来”的一年.
• The years 1960 and 1964 were both bissextile. 1960和1964年都是闰年.