Dialogue Three
A: Your prices seem a little high.

A:你们的价钱高了一些。

B: We could make them lower for you.

B:我们可以算你便宜一点。

A: How?

A:怎么个便宜法？

B: If you order in large lots, we’ll reduce the price.

如果你大量订购，我们可以降价。

Dialogue Four

A: We can make the price lower if you would order a bit more.

A:如果你单子下多一点，我们可以减价。

B: How much more?

B:还要多下多少？

A: Just three more cases.

A:只要再加三箱就可以了。

B: I think we can do that.

B:那我想没问题。