Governments have at least a moral obligation to answer these questions.

政府至少在道义上有责任回应这些问题。

《牛津词典》

We have a moral obligation to protect the environment.

我们有道义责任保护环境。

《牛津词典》

The world has a moral obligation to help the Palestinians.

世界有道德义务帮助巴勒斯坦人。

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Of two pleasures, if there be one to which all or almost all who have experience of both give a decided preference, irrespective of any feeling of moral obligation to prefer it -- in other words, no outside, no independent standard -- then, that is the more desirable pleasure."

这两种快乐中，如果所有或几乎所有,两种都体验过的人，都更偏好其中一种，而且并不是出于任何道德责任-,换句话说，没有外界的，独立的标准影响-,那么该快乐就是更令人满意的“

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And in Afghanistan, it was considered a moral obligation to carry out one's revenge.

NPR: Sergeant Notes Odd Rituals of War in Afghanistan

"We have a moral obligation to the women of America, " said the group's president, Gloria Feldt.

CNN: Kerry affirms support for?abortion rights

Perhaps more importantly, the pressure to do the right thing is not just a moral obligation anymore.

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