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The effects of a dietary deficiency cannot be studied in a controlled way.
营养不良症不能在一种控制的状态下进行研究。
youdao
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The most common nutritional deficiency is lack of dietary iron.
最常见的营养缺乏是膳食中铁的不足。
youdao
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The most common nutritional deficiency is lack of dietary iron.
最常见的营养缺乏是膳食中铁的不足。
youdao