I'm calling about mistake on our last invoice
Is this your standard price ?
Doesn't the quantity discount 大宗折扣apply on this order
We can make the price lower if you would order a bit more
I have the quotations you asked for 你要的报价做好了。
Were you able to quote on all the items we need ?
I have a question about this quotation you submitted .
What is the deadline for submitting the quotation ?
We'd like a chance to bid on this business.
Can you tell me why our bid was not accepted?
What is your best price on this item ? - $24.95 per hundred pieces

(1) A: We can offer you this in different levels of quality.
B: Is there much of a difference in price ?
A: Yes ,the economy model is about 30% less.
B: We'll take that one . B:我们就买那种。
(2) A: Is this going to satisfy your requirements ?
B: Actually , it is more than we need .
A: We can give you a little cheaper model .
B: Let me see the specifications for that .
(3) A: You're asking too much for this part .
B: we have some cheaper ones .。 。
A: What is the price difference ?
B: The basic model will cost about 10% less .

• economy [i´kɔnəmi] n.经济；机制；组织 (初中英语单词)
• actually [´æktʃuəli] ad.事实上；实际上 (初中英语单词)
• quotation [kwəu´teiʃən] n.引用；引文；语录 (高中英语单词)
• discount [´diskaunt] n.&vt.(打)折扣 (英语四级单词)
• calling [´kɔ:liŋ] n.点名；职业；欲望 (英语六级单词)