To state a price and stick to it; to offer goods at a fixed, unchangeable price, implying honesty and trustworthiness in business dealings.
这家店的商品质量好，价格公道，老板做生意向来言不二价，很受顾客信赖。
The goods in this shop are of good quality and fair price; the owner always sticks to his stated price, earning the trust of customers.
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