lubricated surface

例句：

1. 1.The machine's engine needs to be lubricated regularly to keep it running smoothly.
   这台机器的引擎需要定期润滑，以保持其平稳运行。
2. 2. The new car has a lubricated surface that makes it easier to start and accelerate.
   新车有一个润滑的表面，使启动和加速变得更容易。
3. 3.The oil on the lubricated surface is slippery and can cause accidents if not handled properly.
   润滑表面的油是滑的，如果不妥善处理，可能会造成事故。