他带着一种占有性的表情环顾着自己的新办公室。

He looked around his new office with a ___proprietorial expression.

她对办公室装饰的态度非常占有欲，好像只有她有权决定摆放什么。

Her ___proprietorial attitude towards the office decorations made it clear she thought only she had the right to decide what to display.