duty/'djuːtɪ $ 'duː-/

n. sth you have to do because it is part of your job or it is right

n. 〖复-ties/-tɪz/〗 [C; U] 责任，义务：[duty to do sth] It is my duty to tell him the truth. 告诉他真相是我的责任。

◇You have a duty to serve the people. 你有义务为人民服务。

◇on/off duty 值/下班

构词due + -ty→需要在一定时间内完成的事

音组-ty/-tɪ/

dirty; thirty; duty