obligation
noun
1 [countable] (duty) 义务;
to have an obligation to do sth; 有义务做某事;
a legal/moral/social obligation 法律/道德/社会义务;
to fulfil or meet one's obligations 尽义务
2 [uncountable] (commitment) 责任;
a sense of obligation 责任感;
to be under an/no obligation to do sth; 有责任/无责任做某事
3 [countable] (financial debt) 债务; (debt of gratitude) 人情债;
to meet one's obligations 还债;
to repay an obligation 还债;
to be under an obligation to sb for sth; 因某事欠某人的债