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
1. Children with poor nutrition may develop rachitis.
营养不良的儿童可能患佝偻病。
2. Doctors warned that lack of sunlight can lead to rachitis.
医生警告缺乏阳光可能导致佝偻病。
3. Rachitis affects bone development in young children.
佝偻病会影响幼儿的骨骼发育。
4. The hospital treated several cases of rachitis last year.
这家医院去年治疗了几例佝偻病患者。
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）
e.g. Rachitis is often caused by a lack of vitamin D. 佝偻病通常由维生素D缺乏引起。
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