obligation
美[ˌɑ:blɪˈgeɪʃn] 网络义务；责任；债务；职责
1 . Co-operation was more than just an attractive option, it was an obligation .
合作不仅仅是诱人的选择，它也是一种责任。
来自柯林斯例句
2 . They felt under no obligation to maintain their employees.
他们觉得没有义务为员工提供生活费。
来自柯林斯例句
3 . When teachers assign homework, students usually feel an obligation to do it. 当老师布置家庭作业的时候，学生们通常觉得做作业是分内之事。来自柯林斯例句4. You are under no obligation to buy anything.
你不必非买什么东西不可。
来自《权威词典》
4 . Every player is under an obligation to keep the rules.
每个选手都必须遵守这些规则.
来自《简明英汉词典》
1.the social force that binds you to your obligations and the courses of action demanded by that force;
we must instill a sense of duty in our children
2.the state of being obligated to do or pay something;
he is under an obligation to finish the job
3.a personal relation in which one is indebted for a service or favor
4.a legal agreement specifying a payment or action and the penalty for failure to comply