scum/skʌm/

n U，用作单

1. (液体表面的)浮渣，泡沫

• skim off the scum 撇去浮沫

2. ( [复] scum) C 口 卑贱的人；人渣

• Don't waste your sympathy on scum like that. 不要怜悯那种卑贱的人。

词组the scum of the earth 最可恶的人；最下贱的人

• She considered the murderer as the scum of the earth. 她视谋杀犯为最可恶的人。

–scummy adj