铁是人体必需的微量营养元素。
但是保证微量营养元素和纤维素的摄入量是很重要的。
But it's important that you get your micronutrients and fiber in.
微量元素是人体必需的极易缺乏的营养元素。
Microelements tonic is one of necessary nutrition of body that very easy to fault.
微量元素锌是人体所必需的营养元素之一。
Zinc is one of the necessary nutrition microelements for human body.
微量元素锌是人体所必需的营养元素之一。
Zinc is one of the necessary nutrition microelements for human body.
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