长期缺乏运动会削弱骨骼密度,老年后风险更加明显。Chángqī quēfá yùndòng huì xuēruò gǔgé mìdù, lǎonián hòu fēngxiǎn gèngjiā míngxiǎn.Long-term lack of exercise weakens bone density, and the risks become more obvious in old age.
多晒太阳对孩子的骨骼发育有好处。Duō shài tàiyáng duì háizi de gǔgé fāyù yǒu hǎochù.Plenty of sunshine is good for children's bone development.
医生检查了半天,说他的骨骼没有问题。Yīshēng jiǎnchá le bàntiān, shuō tā de gǔgé méiyǒu wèntí.The doctor examined him for a long time and said his bones were fine.