scummy

1. I don't like walking through the scummy part of town.
   我不喜欢走过城里的下层居民区。
2. That's a scummy trick. They have been playing all sorts of dirty tricks.
   那是一种卑鄙的伎俩。他们一直在耍弄种种卑鄙的伎俩。
3. Although you wear some cologne, I can still vaguely smell a scummy whiff out of you.
   虽然你身上喷了古龙水，但我还是能隐约闻到一股人渣味儿。
4. The scummy surface of the polluted pond.
   被污染的池塘上满是浮渣的水面。

adj

1. covered with scum
   1. the scummy surface of the polluted pond

2. of the most contemptible kind
   1. abject cowardice
   2. a low stunt to pull
   3. a low-down sneak
   4. his miserable treatment of his family
   5. You miserable skunk!
   6. a scummy rabble
   7. a scurvy trick

   Synonym:    abjectlowlow-downmiserablescurvy