They are all natural green food.

这些全都是纯天然的绿色食品。

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Strongly alkaline: grapes, tea leaves, grape wine, kelp, natural green algae.

强碱性：葡萄、茶叶、葡萄酒、海带、天然绿藻类。

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Starch is a natural green reagents material which is rich, renewable and cheap.

淀粉来源丰富、可再生、价格低廉，是比较理想的环保试剂原料。

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Despite the fact the world is green, covered with plants and trees, there is no one natural dye that makes green,a colorfast,permanent dark green."

VOA: special.2011.06.15

The color green is natural for trees and grass.

VOA: special.2009.11.15

" But if you're a farmer, "you're looking for herbal, natural, green or Chinese herbs, some kind of regimen to help your oral health.

NPR: Marketing to Millions: China's Changing Tastes

However, out there on the cutting edge, innovative urban planners, policy-makers, social entrepreneurs and impact investors are advancing the development of natural or green infrastructure (GI).

FORBES: Smart Communities will Build Green Infrastructure

"It's a very interesting experiment capturing a number of attributes, " Sicher said, likening it to Starbucks' Refreshers drinks, which promise "natural energy" from green coffee extract.

NPR: Mountain Dew Introduces A Breakfast Drink