[zh-cn] 1/README

1-Introduction/README.md

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 # Introduction to Data Science
 
 ![data in action](images/data.jpg)
->Photo by <a href="https://unsplash.com/@dawson2406?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Stephen Dawson</a> on <a href="https://unsplash.com/s/photos/data?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Unsplash</a>
+> Photo by <a href="https://unsplash.com/@dawson2406?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Stephen Dawson</a> on <a href="https://unsplash.com/s/photos/data?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Unsplash</a>
   
 In these lessons, you will discover how Data Science is defined and learn about ethical considerations that must be considered by a data scientist. You will also learn how data is defined and learn a bit about statistics and probability, the core academic domains of Data Science.
+
 ### Topics
 
 1. [Defining Data Science](01-defining-data-science/README.md)

1-Introduction/translations/README.zh-cn.md

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+# 数据科学简介
+
+![data in action](../images/data.jpg)
+> Photo by <a href="https://unsplash.com/@dawson2406?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Stephen Dawson</a> on <a href="https://unsplash.com/s/photos/data?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Unsplash</a>
+  
+在这些课程中，你将了解到数据科学是如何定义的，以及数据科学家必须考虑的伦理问题。你还将明白数据是如何定义的，还有一些关于统计学和概率的知识，这是数据科学的核心学术领域。
+
+### 主题
+
+1. [数据科学的定义](../01-defining-data-science/README.md)
+2. [数据科学伦理](../02-ethics/README.md)
+3. [数据的定义](../03-defining-data/README.md)
+4. [统计与概率概论](../04-stats-and-probability/README.md)
+
+### 致谢
+
+这些课程由 [Nitya Narasimhan](https://twitter.com/nitya) 和 [Dmitry Soshnikov](https://twitter.com/shwars) 用 ❤️ 编写。