ectodermosis

例句：

1. 1. The child's development was severely affected by the ectodermosis.
   孩子的发育严重受到了外胚层形成症的影响。
2. 2. The ectodermosis led to a significant delay in the child's growth.
   外胚层形成症导致孩子生长明显延迟。
3. 3.Ectodermosis is a rare condition that affects the formation of the outer layer of the embryo.
   外胚层形成症是一种罕见的状况，影响胚胎外层的形成。