be in duty bound to

v.

有义务；

In Duty Bound:Men, Women, and the State in Upper Canada, 1783-1841
Football: Arsenal Duty-Bound to Take Moral High Ground
Nonfeasance Accomplice and His Duty-bound to Stop Crime
New concepts in vocal fold imaging: a review.####Duty bound.####In reference to Current incidence of duplicate publication in otolar...
In Duty Bound
The New Voter: A Young Arab-American Feels Duty-Bound to Vote
In Duty Bound
Justification for Conscience Exemptions in Health Care
To Secure the Blessings of Liberty
“Eskimo,” or an Encounter with the Real of Feminine Desire