sir

其他意思

1. n. 先生, 閣下

   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.

   • Excuse me sir, but would you mind telling me what sort of car that is?

2. 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.

   • Dear Sir, Your letter of the 9th October addressed to the editor of The Independent has been referred to us for reply.