Question

sir n.先生;（用于姓名前）爵士;（中小学生对男教师的称呼）先生;老师; pl:sirs~

Accepted Answer

英[sɜ:(r)]  美[sɚ] N-VOC(对不知其姓名的男士或上级的尊称)先生，长官People sometimes say sir as a very formal and polite way of addressing a man whose name they do not know or a man of superior rank. For example, a shop assistant might address a male customer as sir .例：Excuse me sir, but would you mind telling me what sort of car that is?...先生，请您告诉我那是什么类型的车好吗？例：Good afternoon to you, sir.下午好，先生。N-TITLE(用于爵士或准男爵的姓名前)爵士Sir is the title used in front of the name of a knight or baronet.例：She introduced me to Sir Tobias and Lady Clarke.她把我引见给了托拜厄斯爵士和克拉克夫人。CONVENTION(正式信函或商务信函开头的称呼语)先生，阁下(写信给某组织时使用 Dear sirs)You use the expression Dear sir at the beginning of a formal letter or a business letter when you are writing to a man. You use Dear sirs when you are writing to an organization.例：Dear Sir, Your letter of the 9th October has been referred to us.尊敬的先生，您 10 月 9 日的来信已转交我处。

单词	sir
音标	英[sɜ:(r)] 美[sɚ]
解释	n.先生;（用于姓名前）爵士;（中小学生对男教师的称呼）先生;老师;
例句	N-VOC (对不知其姓名的男士或上级的尊称)先生，长官 People sometimes say sir as a very formal and polite way of addressing a man whose name they do not know or a man of superior rank. For example, a shop assistant might address a male customer as sir . 例：Excuse me sir, but would you mind telling me what sort of car that is?...先生，请您告诉我那是什么类型的车好吗？例：Good afternoon to you, sir.下午好，先生。 N-TITLE (用于爵士或准男爵的姓名前)爵士 Sir is the title used in front of the name of a knight or baronet. 例：She introduced me to Sir Tobias and Lady Clarke.她把我引见给了托拜厄斯爵士和克拉克夫人。 CONVENTION (正式信函或商务信函开头的称呼语)先生，阁下(写信给某组织时使用 Dear sirs) You use the expression Dear sir at the beginning of a formal letter or a business letter when you are writing to a man. You use Dear sirs when you are writing to an organization. 例：Dear Sir, Your letter of the 9th October has been referred to us.尊敬的先生，您 10 月 9 日的来信已转交我处。
变形	pl:sirs~

Sir Dear Letter Formal Man Writing 英[Sɜ:(R 美[Sɚ