It is a legal, moral duty.

这是法律上、道德上的义务。

The leisure is a moral right, also is a moral duty.

闲暇是一项道德权利，又是一项道德义务。

It's her moral duty to tell the police what she knows.

把她所知道的告诉警察是她道义上的责任。

The key issue is how to reasonably make moral duty become obligation.

关键在于道德义务如何合理上升为法律义务。

At present, moral duty in the scientific research work has received more and more attention.

目前，科研道德责任在科研工作中愈来愈受到人们的关注。