ground duty

例句：

1. 1. Ground duty is a critical component of the construction process.
   地面工作是建筑过程的一个关键组成部分。
2. 2. The engineers were assigned to perform ground duty during the construction phase.
   工程师们被分配在建设阶段执行地面工作。
3. 3. Ground duty often involves ensuring the safety of workers and maintaining the integrity of the site.
   地面工作通常包括确保工人的安全和保持现场的完整性。