Plant roots are able to absorb certain vitamins produced by soil microorganisms, thus suggesting that plants grown in healthy soil, full of microflora and microfauna, are more nutritious.

植物根系能吸收土壤微生物产生的特定维生素，因此，在富含微生植物群和动物群的天然土壤中生长的植物含有更多营养素。

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Onions come in different sizes, shapes, colors and flavors, from mild and sweet to hot and strong. a full-grown onion plant has roots, bulbs and leaves. the leaves are long, thin and hollow.

洋葱有不同的大小、形状、颜色和口味。从温和和甜的到辣和冲的。发育完全的的洋葱有根、球茎和叶子。叶子是细长和中空的。

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