请把书架垂直摆放，不要倾斜。

Please place the bookshelf ___vertically, not tilted.

请将这张纸沿垂直方向对折。

Please fold the paper ___vertically in half.

这家企业的管理结构是垂直的，指令从高层直接传达给基层员工。

This company's management structure is ___vertically organized, with directives flowing from top to bottom.