It is our legal obligation to make sure that clothes that contain mould are destroyed.

我们要确保那些带有霉菌的衣服被销毁掉，这是我们的法律责任。

No legal obligation to offer vacation.

提供假期不属于法律义务。

That's legal obligation of carrier.

这是承运人的法定义务。

It is a legal obligation, but it is also a moral one.

这是一个法律责任，不过也是一个道德上的(责任)。

Parents are under a legal obligation to educate their children.

家长负有教育自己子女的法律责任。