城市消费者对黄油和奶酪等乳制品也有需求，在16世纪，这些产品比谷物还贵。

There was also a demand among urban consumers for dairy products such as butter and cheese, which, in the sixteenth century, had become more expensive than grain.

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而后对所得数据进行分析，深入了解目标消费者的特点、需求、顾虑、消费水平、文化结构等。

Then income data for analysis, in-depth understanding of the target consumer characteristics, needs, concerns, consumption level, cultural structure.

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而消费者的需求数量和结构的变化受到多方面因素如人口、经济、社会文化、购买心理和购买行为等的影响。

And changes in consumer demand and the number of structures affected by many factors such as population, economic, social, cultural, psychological, and purchasing behavior of purchase.

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