在英语中谈价可以使用以下几种方法：

开门见山法

"Is there any discount？"

"How much discount do you give？"

"Can I make an offer？ Give me a discount."

拐弯抹角法

"Lower the price and I'll consider it."

"Will you give me a discount if I buy more than one？"

"Let's make it 30 yuan, a round number."

不屈不挠法

"Don't try to rip me off. I know what this is worth."

其他表达

"Is that your quoted price？"

"This is the lowest possible price."

"It would be very difficult to come down with the price."

"We can offer you discount terms."

"Do you quote CIF or FOB？"

"It's a bargain."

使用这些表达时，请根据具体情况选择合适的策略。