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

对不起，先生，您能告诉我那是什么样的汽车吗？

《柯林斯英汉双解大词典》

Now palter no more; for look you, holy sir, an' thou produce him not—Where is the boy?

现在不要再含糊其辞了；因为瞧你，神父先生，你要是不把他叫出来——孩子在哪儿？

youdao

Please you, sir, my meagre tale is told.

先生，我平淡的故事讲完了。

youdao

A waiter in the play tells a customer, "If you need any Scotch or gin,Sir My number is Eighty-Six."

VOA: special.2010.01.08

"Yes sir,reading you loud and clear. This is Freedom Seven.

VOA: special.2011.05.15

"They hear the tone in my voice which is the tone of a sergeant. I say: 'Sir,I can see you got your horse all saddled, you need to put that fire out.' They hear that tone, and that kind of tone that I just said, that gets you killed in Mississippi.

VOA: standard.2009.11.25

My question to you, sir, is, what do we do?

WHITEHOUSE: President Obama��s Town Hall in Cannon Falls, Minnesota

My hat is off to you sir, you must extremely smart, at least so you think.

FORBES: We Need A New Religion

Gruff and craggy, Hanssen consciously psyches out the younger man ("Your name is Clerk and you call me Sir or Boss, " he instructs an overly familiar Eric).

CNN: Review: Cooper brilliant in OK 'Breach'