I felt duty bound to help.

我觉得去帮忙是义不容辞的。

《柯林斯英汉双解大词典》

Above all, the international community is duty bound to seize this opportunity.

最主要的是，国际社会有义务抓住这一机会。

youdao

But, as parents we are duty bound to look after our own health, just as much as we are to look after our children's health.

但是，作为家长，我们有责任注意自己身体健康，正如我们应尽力照顾好孩子。

youdao

They may be born to perform certain things and as such they're duty bound to follow them.

他们天生的职责不同,所以他们的义务肯定会不同。

耶鲁公开课 - 心理学导论课程节选

He feels duty-bound to participate materially in this political controversy rather than merely remaining in his studious retirement, however pleasant that is, at his father's house.

他觉得自己有责任积极参与到,这场政治争端中来,而不是仅仅拘泥于晚年的学究生活，不管那种生活是多么的惬意。

耶鲁公开课 - 弥尔顿课程节选

And we have ratings agencies that are duty bound to value such debts on a transparent global benchmark.

BBC: The state of play in Athens

"This was a criminal allegation of the most serious nature which we were duty bound to investigate, " he said.

BBC: NEWS | UK | UK Politics | Key points: Cash-for-honours hearing

On the one hand, the CIA is duty bound to keep what it considers to be national security secrets.

NPR: A View from Inside the CIA