劍橋詞典an abnormal increase in the amount of fluid in the skull that results in an increase in pressure inside the skull and an increase in the size of the head 腦積水 Congenital hydrocephalus is present at birth and can result from events during the development of the foetus . 先天性腦積水在出生時(shí)就已發(fā)生，可能是由於胚胎發(fā)育中的事件造成的。 返回 hydrocephalus