a hallmark of Alzheimer's is formation of " plaques " and other assemblies that are believed to damage neurons .阿尔茨海默氏症的一个特征就是“斑块”和其它聚合物的形成,人们相信这些物质会损害神经元。
+prominent hallmark
1 . 突出的标志
keeping up with the times is the most prominent hallmark of the new period .新时期最突出的标志是与时俱进。