But celiac researcher Alessio Fasano says until recent years not much was known about the disease
问题描述：
But celiac researcher Alessio Fasano says until recent years not much was known about the disease
答
这句话的意思是：但是腹腔研究员Alessio Fasano 说,直到近几年我们对这种疾病知道的也不多.主语：celiac researcher Alessio Fasano 谓语动词：says宾语从句：until recent years not much was known about the dise...