a hallmark of Alzheimer's is formation of " plaques " and other assemblies that are believed to damage neurons .阿爾茨海默氏癥的一個特征就是“斑塊”和其它聚合物的形成,人們相信這些物質會損害神經元。
+prominent hallmark
1 . 突出的標志
keeping up with the times is the most prominent hallmark of the new period .新時期最突出的標志是與時俱進。