scavenge

1. V-T/V-I If people or animals scavenge for things, they collect them by searching among waste or unwanted objects. (在垃圾或廢物中) 撿拾

Many are orphans, their parents killed as they scavenged for food. 很多人是孤兒，他們的父母在垃圾中撿食物時丟了性命。

Children scavenge through rubbish. 孩子們在垃圾中撿破爛。

2. scavengerN-COUNT 撿破爛的人; 食腐動物

...scavengers such as rats. …老鼠之類的食腐動物。