及物动词

名词

1. 卑鄙的人;人渣;败类
If you refer to people as scum, you are expressing your feelings of dislike and disgust for them.

2. (液体表面的)浮渣，浮垢
Scum is a layer of a dirty or unpleasant-looking substance on the surface of a liquid.

1. a film of impurities or vegetation that can form on the surface of a liquid

2. worthless people

Synonym: trash