名词
中文翻译：Unknown
同义词：
['lubricant', 'lubri-cating']
例句：
-
1. The engineneeds oil to lubricate its movingparts.
发动机需要油来润滑其运动部件。
-
2. Lubrication is essential for preventingwear and tear on machinery.
润滑对于防止机械磨损至关重要。
-
3. The new lubricant significantly improved the performance of the machine.
新型润滑油显著提高了机器的性能。