enlarging hammer

例句：

1. 1. The company is expandingits operations in the new market.
   该公司正在扩大其在新市场的业务。
2. 2. Theteam is working hard toexpand their knowledge base.
   团队正努力扩大他们的知识基础。
3. 3. The economyis expected to expand as the population grows.
   随着人口增长，预计经济将扩大。