scum的意思
scum
基本释义
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n
泡沫，浮垢，糟粕，渣滓
an unpleasant dirty substance that forms on the surface of water
例句
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a pond covered with green scum
漂满绿色浮沫的池塘
近义词
同根词
adj
scummy 下流的；满是浮渣的；浮渣一般的
