It was a misunderstanding and it preyed on his conscience.
這是個(gè)誤會(huì)，讓他的良心很不安。
I give myself treats and justify them to salve my conscience.
我治療自己并且糾正他們以慰藉自己的良心。
She is that rare bird: a politician with a social conscience.
她是這么一種少見的`人：有社會(huì)良知的政治家。