duty 指按道德和法律的标准，一个人永远要尽的义务，强调自觉性。
obligation 指道义上或法律上对他人的义务，强调强制性。也指因作出承诺而被迫履行的某种义务。
responsibility 指任何义务、职责、责任或职务上所尽的本分，强调对他人的责任。
function 指因职务或职业关系去履行某种职责。
参考例句
1. What is my responsibility? 我的责任是什么？
2. The concept of "individual responsibility" is a necessary fiction. “个人责任”的概念是一种必要的虚构。
3. It is not a sign of weakness, but shows character and responsibility. 它不是一个软弱的迹象，但出现了人格和责任意识。
英英解释
n.
1. the social force that binds you to the courses of action demanded by that force
2. the proper sphere or extent of your activities
3. a form of trustworthiness; the trait of being answerable to someone for something or being responsib
网络释义
Responsibility 責任;
责任能力;
责任，职责，义务;
责任心;
responsibility for 责任,负责;
责任, 负责;
责任, 负责;
对…负有责任;
executive responsibility 执行职责;
Delegating Responsibility 授权;
代表职责;
responsibility center 责任中心;
責任中心;
（责任中心）：一个组织单位，其经理对本单位的成本、收入或资产负责。;
责任中央;
