Even less fortunate was the extension of this type of thinking to include animals as well as plants.

更不幸的是，这种思考方式从植物群体扩展到了动物群体。

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The topics discussed included the co-ordinated study of the destruction of forests, as well as how to combat forest fires and the extension of European research programs on the forest ecosystem.

讨论的主题包括对森林破坏的协同研究，如何扑灭森林火灾，以及关于森林生态系统的欧洲研究项目的扩展。

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This enables any user on the system to exchange files in a secure manner, as long as their counterpart offers this extension as well.

这使系统上的任何用户都可以安全地交换文件，只要通信的对方也提供这个扩展即可。

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And they are hopeful that this White House is looking for an extension as well.

WHITEHOUSE: Press Briefing

The Toms sunglasses extension is well-informed.

FORBES: Toms Adds Glasses In A Smart, Social Brand Extension

Is the number four an indication this is the extension of some well-established franchise?

FORBES: Obsidian Teases New Mystery Project - 'What Do The Words Mean?' [Updated]