木材是天然的聚合物。与乙烯聚合体结合形成聚乙烯的方式一样，葡萄糖单体与木材聚合可以形成维生素聚合物。
Wood is a natural polymer in the same manner that polymers of ethylene are joined to form polyethylene, glucose monomers polymerize in wood to form cellulose polymers.
天然黄酮类化合物广泛存在于药用植物、水果和蔬菜中，是一类重要的天然有机化合物，其存在形式既有与糖结合成苷的，也有游离体。
The natural flavonoid widely exists in medicinal plant, fruit and vegetable, it is a kind of important natural organic compound in the form of either sugar glucoside or free molecular.
然后在第二个半反应里，电子和氢离子与二氧化碳结合生成能量丰富的碳水化合物，像葡萄糖，用于植物生长。
Then, in the second half-reaction, the electrons and hydrogen ions combine with carbon dioxide to create energy-rich carbohydrates, such as glucose, which plants use to grow.
然后在第二个半反应里，电子和氢离子与二氧化碳结合生成能量丰富的碳水化合物，像葡萄糖，用于植物生长。
Then, in the second half-reaction, the electrons and hydrogen ions combine with carbon dioxide to create energy-rich carbohydrates, such as glucose, which plants use to grow.
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