1. 捡破烂;拾荒;(从废弃物中)觅食，寻找
If people or animals scavenge for things, they collect them by searching among waste or unwanted objects.

1. remove unwanted substances from

Synonym: clean

2. feed on carrion or refuse

e.g. hyenas scavenge

3. collect discarded or refused material

e.g. She scavenged the garbage cans for food

Synonym: salvage

4. clean refuse from

e.g. Scavenge a street