my offer was based on reasonable profit, not on wild speculations.我的报价以合理利润为依据，不是漫天要价。
　　moreover, we’ve kept the price close to the costs of production.再说，这已经把价格压到生产费用的边缘了。
　　could you tell me which kind of payment terms you’ll choose? 能否告知你们将采用那种付款方式？
　　would you accept delivery spread over a period of time? 不知你们能不能接受在一段时间内分批交货?