in (all) conscience

given the fact that this is probably wrong; in fairness

凭良心；公正地

how can we in all conscience justify the charging of fees for such a service?.

我们怎么才能凭良心证明为这种服务收费是合理的？。

on one's conscience

weighing heavily and guiltily on one's mind

令人感到内疚；受到良心谴责

an act of providence had prevented him from having a death on his conscience.

天意阻止了他因良心谴责而自杀。

in (all good) conscience

In all truth or fairness.

公平：凭事实或公正