The second one, the evolvement of characters is from complex to simple.

其次，汉字的演变是从繁到简。

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From the evolution of Chinese characters, we can see, the overall trend is that Chinese characters are complex to simple.

从汉字的演变过程，我们可以看到，汉字的总体发展趋势是有繁至简。

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The structure forms of catalyst support for tubular fixed bed reactor underwent the evolution from complex to simple and from difficult to easy.

列管式固定床反应器催化剂支托的结构形式，经历了由繁到简、由难到易的演变。

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I do not believe we can come to simple conclusions when it comes to the cause and effects of such a complex disorder as autism."

VOA: standard.2010.08.09

Instead, they use complex phrases to communicate simple concepts because they are under the delusion that this makes them sound more professional.

FORBES: Avoid The Weasel Words -Media Training

This will allow us to transition from simple to more complex tasks that may require accessing a variety of applications and information source in a coordinated workflow.

FORBES: Beyond Voice Recognition: It's The Age Of Intelligent Systems

CloudOn also provides Adobe Reader to view PDFs - everything from simple forms to complex 3-D documents - and a universal viewer for any file, ranging from raw Photoshop images to everyday image files, including: PNG, JPEG and GIF.

ENGADGET: CloudOn launching its iOS, Android tablet apps in 16 more countries, Office hounds rejoice