The museum will serve as a memorial to the millions who passed through Ellis IslandThe museum will serve as a memorial to the millions who passed through Ellis Island
其中很多在博物馆展出，但也有一些借给了其他博物馆。
a small pile of stones made, especially on mountains, to mark a place or as a memorial (= an objecta small pile of stones made, especially on mountains, to mark a place or as a memorial (= an object
（尤指山上用于标记地点或作为纪念的）堆石标，圆锥形石堆
