钙也是必不可少的细胞结构，肌肉收缩，神经传递，酶激活和激素功能。
Calcium is also essential from cellular structure, muscle contraction, nerve transmission, enzyme activation and hormone function.
钙也是必不可少的细胞结构，肌肉收缩，神经传递，酶激活和激素功能。
Calcium is also essential from cellular structure, muscle contraction, nerve transmission, enzyme activation and hormone function.
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