litter picker          
noun [ C ] UK (also litter-picker) uk/ˈlɪt.ə ˌpɪk.ər/ us/ˈlɪt̬.ɚ ˌpɪk.ɚ / (US trash picker)
 捡拾垃圾者
someone who goes around a public place picking up litter (= small pieces of rubbish) from the ground
  150 litter pickers will be employed to clear the site on the Monday after the race weekend. 在周末比赛之后的星期一,将有150名捡拾垃圾者被雇来清理现场。 
 She earned money as a litter-picker at the Glastonbury Festival. 她在格拉斯顿伯里音乐节上当捡垃圾的人赚了钱。 
  (US trash picker, trash grabber, garbage stick)垃圾捡拾器,长柄垃圾钳 
a device like a long stick with two parts on the end that can be opened and pressed together using a handle at the top of the stick, in order to pick up small pieces of rubbish from the ground, or a stick with a point on the end that can be used to do this
  Bin bags and litter pickers will be provided. 我们将提供垃圾袋和垃圾捡拾器。 
 I grab a litter picker and start reaching for far-flung sweet wrappers. 我拿起一个垃圾捡拾器,开始抓取远处的糖果包装纸。 
 Synonym: litter pick 
 - More examples
 - Litter pickers Smith and Riley took to the streets on Saturday morning to tackle rubbish left by shoppers.
 - A shocked litter picker found the ashes of a man who died six years ago lying by the side of a road.
 - Next thing he knew there was a council officer at the door delivering a litter picker, brush and plastic sacks, with an invitation to clean his own street.