march field maintenance

例句：

1. 1. The march of history is always full of challenges and opportunities.
   历史前进总是充满挑战和机遇。
2. 2. The field maintenance team was responsible for maintaining the crops' health.
   田间维护队负责保持作物的健康。
3. 3. The march of time is relentless, and we must adapt to its rhythm.
   时间的流逝是无情的，我们必须适应它的节奏。