ThefirstdayofthemonthofMayisknownasMayDay.Itisthetimeof...
问题详情:ThefirstdayofthemonthofMayisknownasMayDay.Itisthetimeofyearwhenwarmerweatherbegins.Peoplecelebratethecomingofsummerwithcustomsthatareexpressionsofjoyandhopeafteralongwinter.Today,MayDayactivit...