之前的衰退往往开始于由有形货物组成的“真实”世界，然后蔓延至金融部门。 但这一次恰恰相反。

Previous recessions started in the "real" world of tangible goods, then spread to the financial sector; this time, it was the other way around.

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首先，该定义明确了用来交换的不局限于有形产品(货物)，而且可以也包括观念和服务。

First, it makes it clear what is to be exchanged is not restricted to tangible products (goods) but can include concepts and services as well.

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物流中，物品的概念包括有形的货物和无形的服务，如客户服务、货运代理及物流网络设计。

The concept of article in logistics includes tangible goods and intangible service, such as customer service, freight agents and logistics network design.

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