lowlifes

He's nothing but a lowlife who cheats innocent people.

用法提示：lowlife 作名词，指卑劣的人，在句中作表语。

The neighborhood is overrun with lowlifes who sell drugs.

用法提示：lowlifes 是 lowlife 的复数形式，在句中作主语，指一群卑劣的人。

Only a lowlife would steal from a child's charity box.

用法提示：lowlife 作主语，强调道德低下的人。