/ˈswi:pə(r) ||; ˈswipɚ/noun[C] 1 a person or thing that cleans surfaces with a brush 打扫人；清扫器: He's a road sweeper. 他是个清道夫。Do you sell carpet sweepers? 你们出售地毯清扫器吗？
2 (in football) the defending player who plays behind the other defending players （足球）自由中恒，清道夫