闰 rùn extra month Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 即使碰到闰年，2月都是一年中最短的月份。 jíshǐ pèng dào rùnnián,2 yuè dōu shì yī nián zhōng zuì duǎn de yuèfèn. Even during leap years, February is the shortest month in the year. Source: CCMatrix