We have a moralobligation to protect the environment.
我们有道义责任保护环境。
《牛津词典》
2
Governments have at least a moralobligation 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》
3
According to Cynthia Pury, a psychologist at Clemson University, Pedeleose's story proves the point that courage is not motivated by fearlessness, but by moralobligation.