And without a simple system, constant communication to spread knowledge, and feedback to steer with, it's tough to be brave.

而如果没有简单的系统、没有不断的交流来扩展知识以及没有掌握方向所依赖的反馈，勇敢也就失去了依靠。

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This paper analyzes the present condition and channel of knowledge interchange in the national system of scientific communication and some policy are suggested.

本文对国家科技传播体系内知识交流的途径和现状进行了分析，并提出了相关的政策建议。

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And relating now the computer technology with the wireless communication technology, We explore the future of the knowledge-based system in the education.

以及联系现在与计算机技术相关的无线通讯技术，来探讨知识库系统在教育领域发展趋势。

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