brittle bone disease
noun/ˌbrɪtl ˈbəʊn dɪziːz/
/ˌbrɪtl ˈbəʊn dɪziːz/
[uncountable] (medical)- a rare disease in which somebody’s bones break extremely easily
成骨不全；脆骨病 - (also osteoporosis)a condition in which the bones become weak and are easily broken, usually when people get older or because they do not eat enough of certain substances
成骨不全；脆骨病