1.[C,U]良心，良知
2.[U,C]内疚，愧疚
3. 不可数名词：凭良心 词形变化
- 形容词 conscienceless
- motivation deriving logically from ethical or moral principles that govern a person‘s thoughts and actions
- conformity to one‘s own sense of right conduct
- a feeling of shame when you do something immoral