求翻译：有些供应商可能会给不合理的价格，所以我们必须知道怎么样判断采购价格是否合理，我们可以进行成本分析，价格分析，市场调研和对比多家厂商报价。是什么意思？

Some suppliers might give an unreasonable price, so we must know how to determine the purchase price is reasonable, we can conduct a cost analysis, price analysis, market research and contrast a number of manufacturers offer.

Some vendors may not be reasonable price, so we must know how judgment purchase price is reasonable, we can carry out a cost analysis, price analysis, market research, and compare multiple vendors quote.

正在翻译，请等待...

Some vendors may not be to a reasonable price, so we have to know how to judge whether the price is reasonable, we can conduct a cost analysis, price analysis, market research and comparison of a number of manufacturers offer.

Some suppliers possibly can give the unreasonable price, therefore we must know how judges the purchase price is whether reasonable, we may carry on the cost analysis, the price analysis, the market investigate and study and contrast many manufacturer quoted price.