We are the dregs of society.

我们真是社会的渣滓。

The man who came up the staircase with a furtive, soft-footed tread was quite unknown to Tommy. He was obviously of the very dregs of society.

汤米完全不认识那个偷偷摸摸地走上楼梯的人。他显然是社会的渣滓。