their

A：I’m trying to decide what school to apply for.
      我在考虑申请哪一所学校。

B：Are you thinking about a public school or a private one？
      是上公立学校还是私立学校？

A：I’m not sure. What’s the difference between them?
      我也不知道。有什么区别？

B：Public schools are usually state funded, whereas private schools usually get their funding elsewhere.
      公立学校通常是州政府投资办学，而私立学校通常是通过其他方式筹集资金。

A：Which is better?
      那么哪一个更好呢？

B：One isn’t necessarily better than the other. It depends a lot on the school administration and the teachers.
      不是一所就比另外一所好。这跟学校的管理和师资有很大关系。

their的意思

A：I hear you have to wear unifomp3s at private schools.
      我听说私立学校要穿校服。

B：Yeah, sometimes.
      是，有时候是这样。

A：May I speak to the head of the household?
      我可以请户主听电话吗？

B：May I ask who's calling?
      请问你是谁？

A：This is Susan with Jiaotong University student.I am calling on behalf of the Private Teacher Company. May I have your name, sir?
      我是交通大学的在校生苏珊，我代表家教公司给您打电话。请问您贵姓？

B：My name is Li.
      我姓李。

A：Excuse me, Mr. Li. Do you have children, Mr. Li?
      打搅了，李先生。您有孩子吗？

B：Yes.
      有。

A：Great. I believe you must care for his educations.
      太好了。我相信你肯定很关心他的教育吧。

B：Yes.
      是的。

A：You probably heard about it. We have private teachers in our holiday.We will help your children in learning lessons in their free time. We are running a special offer on this holiday. You might want to know more about it.
      或许你已经听说过。我们交大的学生在假期间做家教。我们可以帮助您的孩子在他们空闲时学习功课。 我们在这个假期有个特价优惠。我想你肯定想多了解点吧。

B：yeah.
      是的。

A：We're having some quality-control problems, Jim. We need to go to the source to work them out.
      吉姆，我们有一些品管的问题。我们必须找出问题根源并设法解决。

B：What problems are you having, exactly?
      你们究竟有什么问题？

A：The complaint rate for our new product line is very high, almost seven percent.
      我们新产品的抱怨率非常高，几乎高达百分之七。

their的翻译

B：That's high.
      的确很高。

A：Yes. We keep finding problems when testing the boards.
      没错。我们测试声卡时一直发现问题。

their的意思

B：But your promotional materials claim the boards are the least expensive of their type on the market.
      可是你们的促销材料要求这种声卡必须是市场上同类型产品中最便宜的。

A：The least expensive, but still fully functional. And we think that your factory needs to take measures to improve quality control.
      是要最便宜，但仍要有完备的功能。我们认为你们工厂需要采取措施来改善品管。

B：That will involve additional expenses for us, which we'll have to pass on to you as a rate hike.
      那意味我们会有额外的开销，而我们会把价格增加部分转嫁到你们身上。

A：I'm afraid that's unacceptable. Your contract says that you will deliver a product with a reject rate of less than five percent.
      恐怕我们无法接受。你们的合约上说你们会以低于百分之五的瑕疵率交货。

B：Well, I'll tell you what, Mike. I'll review the contract and talk with management. Then we'll get together and hash this out.
      嗯，莱斯特我跟你说，我会再看一遍合约，并和管理部门讨论。然后我们会一起讨论解决这个问题。

1. 他们的;她们的;它们的
    You use their to indicate that something belongs or relates to the group of people, animals, or things that you are talking about.

    e.g. Janis and Kurt have announced their engagement...
           贾尼斯和库尔特已宣布订婚。
    e.g. Horses were poking their heads over their stall doors.
           马儿们从马厩门上探出头来。

2. (代替 his or her，而不指明是男是女;有人认为这种用法不对)
    You use their instead of 'his or her' to indicate that something belongs or relates to a person without saying whether that person is a man or a woman. Some people think this use is incorrect.

    e.g. Every member will receive their own 'Welcome to Labour' brochure.
           每个党员都将收到一本名为《欢迎加入工党》的小册子。
    e.g. But anyone looking for income from their investments is in a much worse state.
           但是，那些指望靠投资获取收入的人境况更为糟糕。