expansion work

例句：

1. 1.The company is expanding its operations in the new market.
   该公司正在扩大其在新兴市场的业务。
2. 2.The expansion work has been completed successfully.
   扩张工作已成功完成。
3. 3. The expansion work will take several months to complete.
   扩张工作需要几个月才能完成。