Tom:
You’re asking too much for this part .

这零件你们要价太高了。
Mary:
We have some cheaper ones .

我们有便宜一点的。
Tom:
What is the price difference ?

价钱差多少?
Mary:
The basic model will cost about 10% less .

基本型的便宜约10%左右。
Tom:
How many different models of this do you offer?

这个你们有多少种不同的型式。
Mary:
We have five different ones .

五种
Tom:
Is there much of a price difference .

价钱有很大的差别吗?
Mary:
Yes, so we had better look over your specifications.

是的,所以我们最好先把您的规格说明细看一遍。