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翻译(51)
51.Although it has been possible to infer from the goods and services actually produced what manufacturers and servicing trades thought their customers wanted, only a study of relevant personal documents written by actual consumers will provide a precise picture of who wanted what.
答案：尽管从生产厂商和服务行业认为他们的顾客需要并实际生产的产品或者提供的服务来推断他是可能的。但只有对实际的消费者填写的个人资料的研究才能清楚地描述顾客的需求。
