对话文本
A: How much will our order from your factory be?

B: I'll be happy to get back to you with an estimate in the next few days.

A: I'm afraid I can't wait that long. Can your office at least provide me with a ballpark figure?

B: Well, I would need an idea of how large your order would be. About how many units would you need?

A: Just give me an estimated figure for an order of 100 units.

A: Please give me a few minute to calculate.... Our asking price should be about $100 per unit with an order of 100. Is that price acceptable to you?

B: Your estimated is seems a little high to me, we're willing to pay $80 per unit.

A: Would an order of only 100 units, it'll be difficult to work within that kind of budget. Maybe if you were ordering 500 units or more units, we might be able to work something out.
参考翻译
我们从你们工厂订的货需要多少钱?
过几天我很乐意给你们一个估价单.
恐怕我等不了那么久.至少你们部门能给我一个大概的数字吧?
好的,我需要知道你们的订单有多大?大约需要多少套?
只要按100套的订单给我一个大概的数字就行.
容我几分钟算算.我们的要价是100套左右的订单每套100美元.这个价格你们能接受吗?
对我来说,你们的报价有点儿高了.我们愿意每套出80美元.
只有100套的订单,在这个预算范围内很难运作.如果你们订500套或者更多的话,也许我们能够找到什么解决办法.
核心词汇
ballpark:an area or a range within which an amount is likely to be correct or within which something can be measured （数额的）变动范围;可量范围
The offers for the contract were all in the same ballpark. 就此合同的开价均在同一范围内。
If you said five million you'd be in the ballpark. 如果你说的是五百万,那就差不多了.
Give me a ballpark figure(= a number that is approximately right). 给我个大致恰当的数字.

acceptable:that somebody agrees is satisfactory or allowed 令人满意的;可容许的 ~ (to sb)
We want a political solution that is acceptable to all parties. 我们需要一个各方都可接受的政治解决方案.
For this course a pass in English at grade B is acceptable. 英语成绩 B 级就可以学这门课程.
Air pollution in the city had reached four times the acceptable levels. 这座城市的空气污染程度曾高达可接受标准的四倍.

order:a request to make or supply goods 订货;订购;订单
I would like to place an order for ten copies of this book. 这本书我想订购十册。
an order form 订货单
The machine parts are still on order(= they have been ordered but have not yet been received) 机器零件尚在订购之中。
These items can be made to order(= produced especially for a particular customer) 这几项可以订做。