1. Cretinism is a congenital disorder caused by untreated or poorly treated hypothyroidism in infancy.(先天愚型是一种婴儿期未经治疗或治疗不当的甲状腺功能减退症引起的先天性疾病。)
2. The child's mental and physical development was severely stunted due to cretinism.(由于先天愚型,这个孩子的智力和身体发育严重受到了阻碍。)