但骨质疏松症并不仅仅是“老年人的”疾病。
骨质疏松症是一种常见病,它严重地威胁着人们特别是中老年人的健康。
Osteoporisis is a common disease, this situation is serious to middle-age and old people.
骨质疏松症是一种常见病,它严重地威胁着人们特别是中老年人的健康。
Osteoporisis is a common disease, this situation is serious to middle-age and old people.
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