calcia

例句：

1. 1.The milk contains a lot of calcium for the baby's bones.
   牛奶中含有大量的钙，对宝宝骨骼有益。
2. 2. Calcium supplements are recommended for people who have low calcium levels in their diet.
   建议那些饮食中钙含量低的人补充钙质。
3. 3.The mineral is essential for bone health and can be found in many foods, including dairy products.
   这种矿物质对于骨骼健康至关重要，可以在许多食物中找到，比如乳制品。