noun
duty
/'dju:ti/
duty 是什么意思
责任,关税,职务,尊敬
The social force that binds you to the courses of action demanded by that force; every opportunity, an obligation; every possession, a duty"- John D.Rockefeller Jr work that you are obliged to perform for moral or legal reasons a government tax on imports or exports.
词性
noun
难度
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