常見例句A leap year can have from 383 to 385 days. 閏年可能有383到385天。A leap year is an intercalary year. 閏年是“插進(jìn)來”的一年。Returns an indication whether the specified year is a leap year. 返回指定的年份是否為閏年的指示。A leap year occurs once every four years. 每四年才有一次閏年。A leap year occurs every four years. 每四年有一個(gè)閏年。If it's not a leap year, how many days will there be in February? 如果不是閏年,二月份有多少天呢? 返回 a leap year