"Two stacks of newspapers" 表示两沓报纸。

这个表达来自英语中的名词 "stack",意思是一堆、一摞,常用来描述报纸、书籍或者其他杂物的堆叠情况。

例如:

I bought two stacks of newspapers from the newsstand. (我在报摊上买了两沓报纸。)
The stacks of newspapers on the table are getting too high. (桌子上的报纸堆太高了。)
Can you please put these stacks of newspapers in the recycpng bin? (能把这些报纸堆放进回收箱吗?)