我们的食物中差不多有三分之一是碳水化合物，大概有一半谷物食品为全麦的。
Around one-third of our meals should be based on carbohydrates, with roughly one half of these grains being whole.
复杂碳水化合物如纤维素、半纤维素基本上是不能消化的，就象植物性食物中所找到的许多低聚糖、某些其它碳水化合物、树胶和纤维质材料一样。
Complex carbohydrates, such as cellulose and hemicellulose, are largely indigestible, as are a number of origins.
我们每餐食物应当差不多有三分之一是碳水化合物，大概有一半谷物食品为全麦的。
Around one third of our meals should be based on carbohydrate, with roughly one half of these grains being whole.
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