Daily Chinese Idiom Guessing Game
An obligation that one cannot decline; a duty that must be fulfilled.
容允许；辞推托。道义上不允许推辞。
明·冯梦龙《醒世恒言》卷十七承姑丈高谊，小婿义不容辞。”
As a doctor, it is my duty to help the injured—an obligation I cannot refuse.