rickets (rachitis) 佝偻病
vitamin D deficiency 维生素D缺乏
bone deformity 骨骼畸形
calcium deficiency 钙缺乏
skeletal development 骨骼发育
childhood disease 儿童疾病
prevent rachitis 预防佝偻病
A: What is rachitis?
A：什么是佝偻病？
B: It is a disease caused by vitamin D deficiency.
B：它是由维生素D缺乏引起的疾病。
1) 因维生素D缺乏导致的骨骼疾病
2) 儿童常见的营养缺乏性疾病
3) 导致骨骼软化与变形的病症
1. 佝偻病（因维生素D缺乏引起的骨骼疾病）
noun
1. A disease, mainly in children, caused by a deficiency of vitamin D, calcium, or phosphate, leading to soft or weak bones.
Synonym: rickets