Which poem is used to describe the cleaner?

Meet the first light every day, day after day, year after year, be conscientious and work hard, and always fight in the front line of sanitation work, no matter whether it is hot or cold, whether it is snowy or snowy.

In spring, autumn leaves fall all over bloom, and we worry about sweeping the floor. Three thousand world of mortals can't be swept away. Have a cup of tea by the roadside.