riffraff

基本解释

I am convinced that you [should] continue to hold this riffraff in contempt...
我坚信你应该继续鄙视这群流氓……
He would entertain there the factor of Taiohae, captains of wandering traders, and all the best of the South Pacific riffraff.
他要在那儿宴请泰欣黑的商务代办、往来的商船船长和南太平洋流浪汉中的头面人物。
When Bodleian funded the Bodleian library at Oxford, he wouldn't allow stage plays to be there because they were riffraff, they were trash.
博德利在牛津大学建图书馆的时候，不允许舞台剧本上架，因为这都是很下贱的，是垃圾。

The riffraff in their midst felt a gluttonous craving; and then the Israelites wept and said, 'If only we had meat to eat!
这些乌合之众是贪食者;,然后犹太人边哭边说，“要是有肉吃就好了！
耶鲁公开课 - 旧约导论课程节选

Here, they were protected from the riffraff, the neighborhood, even from Mother Nature, in the form of floods or biting insects.
NEWYORKER: Shauntrelle
In town there was a professional summer theatre, a new thing at the time, which some people were enthusiastic about and others worried about, fearing that it would bring in riffraff.
NEWYORKER: Gravel
Still, when the professors saw one another at the staff club or at church or at a faculty meeting, they were careful to moan about the riffraff from town coming onto their sacred campus to steal.
NEWYORKER: Cell One

If you refer to a group of people as riffraff, you disapprove of them because you think they are not respectable.