4周搞定2000+托福核心词
announcer = an(一再) + nounce(讲话) + er(一类人) = 一再通知的人→广播员
commuter = com(一起) + mut(改变) + er(一类人) = 一起改变的人→通勤者
清除污物的动物→食腐动物
scavenger
常考释义
After the death of an organism, the soft tissue is ordinarily consumed by scavengers and bacteria.
生物体死后，软组织一般会被食腐动物和细菌吃掉。
来源于：阅读OFFICIAL20 P3n. 食腐动物
He is not a scavenger nor just a moving appetite as some sharks are.
它不是食腐动物,也不像有些鲨鱼那样,只知道游来游去满足食欲。
After the death of an organism, the soft tissue is ordinarily consumed by scavengers and bacteria.
生物体死后，软组织一般会被食腐动物和细菌吃掉。
来源于：阅读OFFICIAL20 P3Attack by scavengers and bacteria, chemical decay, and destruction by erosion and other geologic agencies make the odds against preservation very high.
食腐动物和细菌的破坏、化学性腐烂、腐蚀以及其它地质因素都会非常不利于保存。
来源于：阅读OFFICIAL20 P3n. 拾荒者；捡破烂的人
He be just fit for a job as scavenger.
他正好当个清道夫之职.
n. 清除剂；净化剂【化】
Mulberry red pigment hence was a good kind of natural radical scavenger.
桑椹红色素是一种很好的天然自由基清除剂.
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