scum
US /skʌm/
UK /skʌm/
名词
1.
浮渣
a layer of unpleasant or unwanted material that has formed on the top of a liquid:
示例:
•
The lake near the factory was covered with gray, foul-smelling scum.
在 Lingoland 学习这个单词
浮渣
a layer of unpleasant or unwanted material that has formed on the top of a liquid: