英语词汇“pond scum”是什么意思，“pond scum”的读音、用法及例句翻译-烛光网

词汇	pond scum
释义	pond scumn.（名词） Any of various freshwater algae that form a usually greenish film on the surface of stagnant water.绿藻：一种淡水藻，它在死水表面形成一个通常为淡绿色的薄膜
随便看	desalt desaminase Desargues descant descanted descanting descants Descartes descend descend descendant descendant descendants descended descendent descendent descender descenders descending descends descent descent descents Deschutes descramble

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