scavenge
verb [ I or T ] uk/ˈskæv.ɪndʒ/ us/ˈskæv.ɪndʒ/
（从废弃物中）觅食；捡破烂
to look for or get food or other objects in other people's rubbish
The flood has left people and animals desperately scavenging for food. 因遭受水灾，村民和牲畜四处寻觅食物。
We managed to scavenge a lot of furniture from the dump. 我们从当地的垃圾堆里捡到了许多家具。
（野生动物）以腐肉为食
If a wild animal scavenges, it feeds on the flesh of dead decaying animals.