sir

释义

• noun（表示尊称）先生；（公务信函称呼）先生，阁下；（英国贵族头衔）爵士

英英释义

• nouna polite way of speaking to a man instead of using his name, for example in a shop or restaurant, or to show respect to a man in authority

• nouna word that you use at the beginning of a formal letter or email to a man

• nounthe title that is used in front of the name of a man who has received one of the highest awards from the British royal family

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