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n.(used with a sing. or pl. verb)(名词)(与单数或复数动词连用)A deficiency disease resulting from a lack of vitamin D or calcium and from insufficient exposure to sunlight, characterized by defective bone growth and occurring chiefly in children.Also called rachitis 佝偻病,软骨病:由缺乏维生素D或钙及日晒不足导致的缺陷疾病,症状为有缺陷的骨质发育,主要发生于儿童中也作 rachitis
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