groundworks

例句：

1. 1. The construction of the new hospital is a major groundwork for the city's development.
   新医院的建设是该市发展的重要基础。
2. 2. The engineers were working on the groundworks before the project was completed.
   在项目完成之前，工程师们正在做基础工作。
3. 3. The company has been investing heavily in its groundworks to improve its competitiveness.
   该公司一直在大力投资其基础设施，以提高竞争力。