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单词 pond scum
释义

pond scum

noun
mass noun
1
N. Amer. a mass of algae forming a green film on the surface of stagnant water
〈北美〉水华, (死水水面上形成的)绿藻(层)。
1.1
informal a person or thing perceived as worthless or contemptible
〈非正式〉人渣; 垃圾。
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更新时间:2025/8/6 22:33:16