乌合之众: a motley crew (crowd); a disorderly crowd; a gathering of crowds; a crowd assembled like crows; a motley force that knows no discipline; sheep that have no shepherd; tag-rag and bobtail; m
地痞流氓: local gangsters who feed on the population; hooligans and gangsters; hooligans and local despots; local ruffians; local ruffians who prey on the residents; local bullies and loafers
