这就是为什么价值来源于产品与服务。
That's how the value is derived from the product or service.
企业的生产活动中,最关键的投入与价值来源是知识。
In corporation operation, the most important input and value source is knowledge.
因此,价值来源是一个需要严肃对待和不容放松的问题。
Therefore the origin of value is a problem that should not be neglected but treated seriously.
So fat becomes a very valuable energy source.
所以脂肪是非常有价值的能量来源
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