He wrote, "Plant materials should thrive, be non invasive, and require little maintenance."

他写道，“植物素材应该茂盛，非侵犯性的，需要的维护很少。”

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As they report in Biotropica, ten of these 15 build their tents from palm leaves and other sturdy plant materials.

当他们在《热带生物期刊》（Biotropica）报道时，这15个种群中有10个种群用棕榈树叶和其它结实的植物材料建造它们的帐篷。

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PepsiCo says it is the world's first bottle of a common type of plastic called PET made entirely of plant materials.

百事公司声称这是世界上第一个完全由植物材料制成的PET塑料瓶子，PET是一种很普通的塑料类型。

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Researchers discuss investigations into innovative ways to harvest energy from plant materials, including gasoline-like chemicals and hydrogen production.

NPR: Scientists Seek New Ways to Produce Biofuel

Noble Fir forms the base, accented by such unusual-for-holiday plant materials such as lavender, globe thistle and pearly everlasting.

WSJ: Greenery, With Hints of the Forest and Desert

Conditions at the site are unusually favourable for the preservation of plant materials.

ECONOMIST: Archaeology