这些盘子需要在橱柜内垂直叠放。

These plates need to ___stack vertically in the cabinet.

他把书整齐地堆在桌子上。

He neatly ___stacked the books on the desk.

文件在桌上越堆越高，我都没地方放咖啡杯了。

The papers are ___stacking up on the desk, leaving no room for my coffee mug.

图书馆员按照作者姓氏的字母顺序将这些书堆叠起来。

The librarian ___stacked the books in alphabetical order by the authors' last names.