在商务英语中，还价是一个重要的技能，可以帮助你争取到更好的交易条件。以下是一些还价时可能会用到的表达方式：

表达接受但希望降低价格：

"I see where you're coming from, but I think we can do better."

表达无法降低到对方期望的价格：

"I'm afraid we can't go that low. Our product/service quality is top-notch."

提出购买更多商品以获得折扣：

"If you're willing to purchase in bulk, we might be able to offer a discount."

提出具体的还价建议：

"I'll respond to your counter-offer by reducing our price by three dollars."

表达如果价格不合理，宁愿不做这笔生意：

"If the price is higher than that, we'd rather call the whole deal off."

强调产品或服务的价值：

"We provide outstanding product/service. Our company values quality very much."

询问是否有批量购买的折扣：

"Is there any discount on bulk purchases？"

询问价格是否可协商：

"Is this price negotiable？"

表达时间敏感性，催促对方下单：

"We can discuss the price further if you can place the order soon."

使用这些表达时，记得保持礼貌和专业，同时也要注意聆听对方的还价，以便作出相应的调整。