51 labor is the most glorious and beautiful vector picture wallpaper

51 Labor is the most glorious and beautiful vector computer wallpaper.International Labor Day, also known as "May Day International Labor Day" and "International Demonstration Day", is a national holiday in more than 80 countries in the world.It is held on May 1st every year.It is a festival shared by working people all over the world.A truly beautiful life can only be created through labor. Happy May Day.