请确保画框垂直挂在墙上。

Make sure the picture frame is hung ___vertically on the wall.

管理者需要与团队保持纵向沟通。

Managers need to maintain ___vertical communication with their teams.

这家公司通过垂直整合实现了从原材料到销售的全链条控制。

The company achieved ___vertical control by managing everything from raw materials to final sales.