leap day

When overridden in a derived class, determines whether a date is a leap day.

当在派生类中重写时，确定某天是否为闰日。

Determines whether the specified date in the current era is a leap day.

确定当前纪元中的指定日期是否为闰日。

Determines whether the specified date is a leap day.

确定指定的日期是否为闰日。

The National Trust isn't alone in thinking leap day a good day for totalitarianism.

并非只有国民信托才认为闰日是实行极权主义的好日子。

Every four years a leap day helped keep things on track.

每四年出现一个润日作为过渡，以此帮助进入下一个循环。

(1) There is 1 in 1461 the chances of being born on leap day.

出生在2月29日的概率是每1461人中有一个。