她不断要求接管其他部门的工作，明显是在扩张自己的势力范围。

She kept demanding to take over other departments' work, clearly engaging in ___empire-building.

那位经理热衷于扩张地盘，不断收购小公司，却忽视了核心业务的发展。

The manager was obsessed with ___empire-building, constantly acquiring small companies while neglecting the core business.