observed in many countries to celebrate the coming of spring; observed in Russia and related countries in honor of labor
例句
用作名词 (n.)
Tomorrow is May 1 International labor day, I have three day holiday.but my holiday nlans are still at an inderminate satge. 明天是五一国际劳动节,我有三天的假日,不过我的假日计划还没有确定。