high-up

例句：

1. 1. The CEO is high up in the company's hierarchy.
   首席执行官在公司的高层。
2. 2. She was high up on the roof of the building.
   她站在大楼的屋顶上。
3. 3. He was high up in the ranks of the army.
   他在军队的高级阶层。