Street sweeper 清道夫
(重定向自Streetsweeper)
A street sweeper or street cleaner may refer to a a person's occupation, or a machine that cleans streets. A street sweeper cleans the streets, usually in an urban area.
Street sweepers have been employed in cities since sanitation and waste removal became a priority. A street-sweeping person would use a broom and shovel to clean off litter, animal waste and filth that accumulated on streets. Later, water hoses were used to wash the streets.