water re-aeration

例句：

1. 1. The air inthe cave was so poor that it needed re-aeration.
   洞穴里的空气质量很差，需要再充气。
2. 2. The process of re-aeration is crucial for maintaining the health of the lungs.
   再充气的过程对于保持肺部健康至关重要。
3. 3. The engineers carefully monitored the water levels during the re-aeration process.
   工程师们仔细监测了再充气过程中的水位情况。