Calcium - rich substrates dissolve into the water increasing the hardness.

钙含量丰富的物质溶于水中,增加了水的硬度.

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Green leafy vegetables, like broccoli and Chinese cabbage, are also calcium - rich.

绿叶蔬菜, 如花椰菜和大白菜, 也都富含钙质.

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And a slice of cheese and other calcium - rich dairy products could cut your risk of cancer.

吃奶酪和其他富含钙的奶制品能降低患癌症的风险.

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