scavenger

名词 scavenger:

1. a chemical agent that is added to a chemical mixture to counteract the effects of impurities
2. someone who collects things that have been discarded by others
   同义词：magpie, pack rat
3. any animal that feeds on refuse and other decaying organic matter

1. A small fraction of the creatures that die are preserved in this way before decay sets in or, even more likely, before scavengers eat them.
   只有一小部分死掉的生物在开始腐烂前，或者更可能的情况是，在食腐动物吃掉它们之前如此地保存起来。
2. He is just fit for a job as scavenger.
   他正好当个清道夫之职。