One way or a round trip ticket?

单程票还是双程票呢？

We had expected much lower prices.

我们希望报价再低一些。

I would like to suggest that we take a coffee break.

我建议我们休息一下喝杯咖啡。

This is Shen calling.

我姓沈。

We use service centers at major stores. They ship goods back to our national service center for repairs.

我们采用大店服务中心，他们可把产品运送到我们的国内服务中心维修。

To answer the first part of your question, I'd like to say that our studies were very extensive.

你问题的第一部分，我要说的就是我们的研究非常广泛。