Secondly, complicated terrain enhances mechanical turbulent movement.

其次，地形复杂增强了机械湍流运动。

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Social media tools, fragmented media, and a need for disconnected people to find meaning in an increasingly turbulent and unsettling world guarantees more such movement campaigns, says Goodson.

FORBES: Marketers Hope Cultural Movements Build Cult Brands

And a turbulent, anti-politics mood, stirred by the tea-party movement, is making even incumbents nervous.

ECONOMIST: Nobody loves a tight political race as much as a media firm