scavengeWiktionary 原文英/ˈskæv.ɪndʒ/美vt.打扫，排除废气，在...中找有用之物，以...为食，清除vi.清扫中文释义来自 ECDICT词源说明Back-formation from scavenger. Compare messenger and passenger.释义动词verb1transitiveTo collect and remove refuse, or to search through refuse, carrion, or abandoned items for useful material.2transitiveTo remove unwanted material from something, especially to purify molten metal by removing impurities