我认为我们在道义上有责任帮助这些国家。

I think we have a moral responsibility to help these countries.

《牛津词典》

我在道义上有责任帮助他们。

I feel morally obliged to help them.

youdao

我在道义上有责任帮助他们。

I feel morally obliged to help them.

youdao