It's humans' bad conscience due to environmental stuff.

这是人类因环境问题而良心不安。

" Ah, there it is! You had a bad conscience" .

“啊，就是这样！你良心不安” 。

At least when salesmen called from other insurance companies he was able to say without any bad conscience that he was already insured. And that was something.

至少，其他保险公司的人打电话来推销的时候，他可以说自己买过保险了。这也算得上收获。

Even if everybody doesn't feel guilty about showing themselves naked, most people will have a bad conscience if they are really mean to someone.

即使每个人都不会因为裸露自己而感到内疚， 但如果他们真的对某人刻薄， 大多数人都会良心不安。

The two old friends shook hands and parted, and Sebastian, with a slightly bad conscience for having deserted the child so soon, sat down on the station to wait for a returning train.

两个老朋友握手告别， 塞巴斯蒂安因为这么快就抛弃了孩子而有点内疚， 在车站坐下等回程的火车。