重点讲解：
1. pass down 传递；传下去；传下来；
例句：The tradition has been passed down for hundreds of years.
这一传统已传了几百年PNB;J=5fj#e#lw。
2. be exposed to 使暴露于（险境）；使遭受（危险或不快）；使受……的影响；
例句：t is good to be exposed to different cultures.
能够感受到不同的文化是好的Q2L=RPu*U[29;*。
3. contribute to 促成；促使；是导致…的原因之一；
例句：Medication side effects and balance issues, which are exacerbated by a sedentary lifestyle, also contribute to fall risks, she said.
久坐不动的生活方式会加剧药物副作用和平衡问题，同时也增加了摔倒的风险R)O~!.pSy0tC#+neE。