n.闰年（二月加一日，故闰年为366日）...

leap year的复数形式为：leap years...

leap year的音标：leap year的英式发音音标为：[li:p jə:]leap year的美式发音音标为：[lip jɪr]...

A leap year has 366 days.闰年有366天.Leap year recurs every four years.每四年闰年一次.Leap year is the year when February has 29 days.二月里有29天的月份是闰年....