Knowledge is the source of technology, and knowledge supply chain is an effective channel of knowledge supply in technology innovation.

知识是技术的源泉，知识供应链是技术创新中知识供应的有效通道。

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Knowledge is wealth, knowledge is power, and knowledge is the source of economic and scientific development. This is an irrefutable truth.

知识就是财富、知识就是力量，知识就是经济、科学等方面的源泉，这是颠扑不破的真理。

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Over time, the knowledge base for a given source is enriched by these annotations.

随着时间的推移，针对一个给定源的知识库会增加这些标注。

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The best source of pressure is the knowledge that there may never be a better chance than now.

ECONOMIST: Cyprus, Turkey and the European Union

While it's unclear who is holding him, a source with knowledge of the case said based on the evidence, there is every reason to believe that Levinson is alive and well.

CNN: Family releases photos of captive American

To make it useful to the rest of the world requires domain knowledge, and often a transformation that is simply nonsensical within the source domain.

FORBES: What It Takes To Find, Scrape And Sell Big Data