sweeper
/ˈswiːpə(r)/noun
1
- a person or device that cleans a floor or road by sweeping清洁工; 清扫器。
2
- Soccer a player stationed behind the other defenders, free to defend at any point across the field and sometimes initiate and support attacks【英足】拖后中卫; 自由中卫。
3
- a small nocturnal shoaling fish of reefs and coastal waters, occurring chiefly in the tropical Indo-Pacific黑边单鳍鱼。
3.1
- Family Pempheridae: several genera and species, including the western Atlantic glassy sweeper(Pempheris schomburgki), with transparent young.单鳍鱼科：数属, 数种, 包括西大西洋的斯氏单鳍鱼（拉丁名Pempheris schomburgki）, 幼鱼通体透明。