1.These photographs show extremes of obesity and emaciation.

1.这照片展现了肥胖与消瘦两个极端。

2.Diabetes mellitus is a disease characterized by polydipsia,polyphagia,polyuria,emaciation and weakness.

2.糖病是以多饮、多食、多、消瘦、衰弱等为征的疾病。