Wanted Infer Goods Services Servicing Thought Customers S

意群训练： Althoug h it has been possibl e to infer fro m the goods and services actually produce d what manufacture s and servicing trade s thought their customers wanted ，only a study o f relevant personal document s written by actual consumer s will provid e a precise pictur e of who wanted what .

标志：Although it has been possible to infer /from the goods and services actually produced/ what manufactures and servicing trades thought their customers wanted ，but only a study of relevant personal documents written by actual consumers will provide a precise picture (of who wanted what).

译文： 尽管 有可能 /从实际产生的商品和服务中/推断出 制造商和服务行业对于顾客需求的想法 ， 但是 只有对真正顾客所写的相关个人记录的研究 才能对 （“什么人”需要什么东西）提供 一个精确的描述 。

解释： 前面的it是形式主语，主语真正的内容在不定式中。不定式中的大规模倒装，是这个句子读不懂的主要原因：infer的宾语是what从句，而infer和从句之间被以from为首的作状语的介词结构所分隔。正常语序应该是：to infer what manufactures and servicing trades thought their customers wanted from the goods and services actually produced。

后面的分句也不好读：主语很长，而且句末的宾语precise picture后面的修饰成分of who wanted what也是比较少见的。