lubricating water

例句：

1. 1.The engine needs lubricating oil to keep it running smoothly.
   发动机需要润滑油来保持顺畅运转。
2. 2.The car's engine is running with a slight hissing sound, which might be due to the lack of lubricating oil.
   汽车的引擎发出轻微的嘶嘶声，可能是由于缺乏润滑油。
3. 3. The mechanic replaced the old oil with fresh lubricating oil to ensure optimal performance.
   机械师用新的润滑油替换了旧的油，以确保最佳性能。