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第一个重要基础:奶和奶制品是1~3岁孩子营养结构中的重要基础1~3岁是儿童早期发展的重要阶段,奶和奶制品是这个时期儿童营养的
The first important foundation: milk and dairy products is an important foundation for the nutritional structure of children aged 1 to 3 1 to 3 years old is an important stage of early childhood development, milk and dairy products are children’s nutrition during this period