agenesis of brain

例句：

1. 1.The child has anencephaly, which can lead to severe developmental delays.
   这个孩子患有脑发育不全，这可能导致严重的发育迟缓。
2. 2. Aplasia is a rare condition where the brain fails to develop fully.
   无脑症是一种罕见的状况，其中大脑未能充分发育。
3. 3. In some cases, agenesis of the brain can be caused by congenital infections.
   在某些情况下，脑发育不全可能是先天性感染的结果。