Firstly , the article has defined this system topology, bus agreement.

文章首先定义了该系统的拓扑结构、总线协议。

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In this article, we firstly give an introduction of health insurance.

在这篇文章里，我们首先对健康保险作了一个概述。

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In this article, we firstly give an introduction of health insurance.

在这篇文章里，我们首先对健康保险作了一个概述。

youdao