第一句：Mr.Smith, Mr.Brown of DEF Computer Company is on the line.
A: Mr. Smith, Mr. Brown of DEF Computer Company is on the line.
B: Can you find out what he wants?
A: Yes, Mr. Smith.
第二句：I'm sorry to have kept you waiting, Mr.Brown.
A: I'm sorry to have kept you waiting, Mr. Brown. Mr.Smith is rather busy right now and would like to know what you wish to speak to him about.
B: Alright. I want to talk about developing some other software.
A: I see. Thank you very much, Mr. Brown. Would you wait a moment, please?
I'll put you through to Mr. Smith.
on the line
eg. Your company's reputation is on the line.
eg. I would not put my Creation on the line if I was not absolutely sure of this.
eg. It cannot be gotten through. In fact, there is no any message be transformed on the line.
eg. If there is enough loudness on the line, which usually indicates someone speaking, the render variable is set.
rather adv. 宁可，宁愿;相当
eg. This one should be rather obvious.
eg. Therefore, if you would understand him, listen not to what he says but rather to what he does not say.
eg. China will continue its policy of opening to the outside world on a broader scale, rather than back away from it.
我国的开放政策不是收， 而是要继续放。内容来自 听力课堂网：http://www.tingclass.net/show-8738-253843-1.html