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duty to do sth
表示‘做某事的责任’，常用it作形式主语。
It is your duty to report any suspicious activity.
你有责任报告任何可疑活动。
责任；义务
duties — plural of duty
先理解核心含义，再看它在真实句子里的用法。
责任；义务
a responsibility or obligation that makes you do what is morally or legally right
It is your duty to report any suspicious activity.
你有责任报告任何可疑活动。
道德或法律上应尽的责任
That which one is morally or legally obligated to do.
义务
the social force that binds you to the courses of action demanded by that force; ; - John D.Rockefeller Jr
在工作岗位上负责或执行某项任务的状态
The state of being at work and responsible for or doing a particular task.
职责
work that you are obliged to perform for moral or legal reasons
It is my duty to help my younger sister with her homework.
帮助妹妹做作业是我的责任。
AI contextual example
The nurse performed her duties with great care.
那位护士非常认真地履行了自己的职责。
AI contextual example
As a citizen, you have a duty to obey the law.
作为公民，你有遵守法律的义务。
AI contextual example
we must instill a sense of duty in our children
我们必须向孩子们灌输责任感。
WordNet
表示‘做某事的责任’，常用it作形式主语。
It is your duty to report any suspicious activity.
你有责任报告任何可疑活动。
表示‘做某事的职责’，后接动名词。
The duty of caring for the environment falls on everyone.
保护环境的责任落在每个人身上。
固定短语，表示‘值班、上班’。
The nurse is on duty tonight.
那位护士今晚值班。
指关税，后接需纳税的商品。
You must pay duty on imported electronics.
你必须为进口电子产品缴纳关税。
Not this
He is in duty today.
Use this
He is on duty today.
中文常直接用「在」对应英文，但固定短语是"on duty"（值班），"on"表示状态。
Not this
She has many duty to do.
Use this
She has many duties to do.
"duty"作可数名词表示具体职责时，复数形式为"duties"；中文无复数变化，容易忽略。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
值班
The security guard is on duty until midnight.
保安值班到午夜。
下班
What do you usually do when you're off duty?
你下班后通常做什么？
责任感
He was motivated by a strong sense of duty.
他受强烈的责任感驱使。
尽责任
We must do our duty to protect the environment.
我们必须尽责任保护环境。
进口关税
The government increased import duties on luxury goods.
政府提高了奢侈品的进口关税。
免税
You can buy duty-free items at the airport.
你可以在机场购买免税商品。
职责所在；责任在召唤
I'd love to stay, but duty calls.
我很想留下，但职责所在。
在执行公务时；履行职责时
The firefighter was injured in the line of duty.
这名消防员在执行公务时受伤了。
责无旁贷；有责任
As a doctor, I feel duty bound to help.
作为一名医生，我感到责无旁贷要提供帮助。
责任，荣誉，国家
As a soldier, he lives by the motto 'Duty, Honor, Country'.
作为一名士兵，他遵循‘责任，荣誉，国家’的格言。
保护这座城市是我的职责。
In the movie 'The Dark Knight', Batman declares, 'It is my duty to protect this city.'
在电影《黑暗骑士》中，蝙蝠侠宣称：‘保护这座城市是我的职责。’
Use duties naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 'due tea'（到期茶税），记住 duty 有‘关税’和‘责任’的意思。
通常用于正式或官方语境，表示道德或法律上的责任；也可指工作职责或海关关税。中性偏正式。
Words with the same stressed vowel and ending as 'duty' include beauty, booty, fruity, and cutie (though cutie is spelled with -ie). The word city has the same spelling (-ty) but a different vowel sound.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.