Be duty-bound义不容辞;责无旁贷
duty-bound obligatory义不容辞的
be duty-bound to有责任
He is duty-bound他责无旁贷
duty-bound not to turn back义无反顾
duty-bound to stop crime犯罪阻止义务
be duty-bound to do sth有责任做
I will be duty-bound我会义不容辞
be duty-bound to do有义务做某事
ADJ（形容词） If you say you are duty-bound to do something, you are emphasizing that you feel it is your duty to do it. 义不容辞的 [正式][v-link ADJ to-inf]
I felt duty bound to help.
我觉得去帮忙是义不容辞的。