scavenge

scavenge
[ˈskavɪn(d)ʒ]
verb
[with obj.]
  1. search for and collect (anything usable) from discarded waste
    从废弃物中捡拾(有用的东西)
    people sell junk scavenged from the garbage.
    人们出售从垃圾中捡来的废旧物。
    the city dump where the squatters scavenge to survive.
    许多人蹲在那里靠捡破烂为生的城市垃圾堆。
    ■(of an animal) search for (carrion) as food
    (动物)觅食(腐肉)
    ■search for discarded items or food in (a place)
    在…搜寻物品(或食物)
    the mink is still commonly seen scavenging the beaches of California.
    还可经常看到貂在加利福尼亚海滩上觅食。
    ■remove (combustion products) from an internal-combustion engine cylinder on the return stroke of the piston
    (从内燃机汽缸里)扫(气)
    ■(Chemistry)combine with and remove (molecules, radicals, etc.) from a particular medium
    (化)(通过化合作用从特定介质中)清除(分子、原子团等)
语源
  1. mid 17th cent. (in the sense 'clean out (dirt'): back-formation from scavenger
英语宝典
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