n.大量,(乱七八糟的)一大堆
Is it only the riff - raff who leave litter about in the parks?
只是那些下层社会的人才会在公园里乱丢东西 吗 ?
Don't bring any riff - raff into my house!
别把不叁不四的人领到我家来!
Who let all this riff raff into the room?
谁让这些乱七八糟的东西进来的?