求翻译：Vitamin A is important for the immune system and for eyesight. Vitamin D3 helps your bady absorb valuable calcium. These important nutrients are naturally present in fresh milk. Calcium, iron and zinc are important to meet the needs of growth and daily performance of school children. Quality milk and these ingredients can help provide the basis for a successful future. To help you and your family enjoy all the benefits that good milk can provide, we have specially improved this product with these valuable nutrients.是什么意思？

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