yī / shēng / tí / xǐng / nǎi / nai / yào / shì / dàng / yùn / dòng / yǐ / yù / fáng / gǔ / zhì / shū / sōng / zhèng

医生提醒奶奶要适当运动，以预防骨质疏松症。

The doctor reminded Grandma to exercise moderately to prevent osteoporosis.