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钙是人体必需的矿物质,它对于促进儿童期骨胳的生长发育,维持心血管和神经肌肉的正常功能,都相当重要。儿童每天摄取的钙量比成人多。
Calcium is an essential mineral for the body and is important for promoting the growth and development of childhood bone and maintaining the normal functioning of the cardiovascular and neuromuscular systems. Children take more calcium per day than adults.