Read Edit View history 润滑油 rùnhuáyóu lubricant Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 润滑油/ 潤滑油 rùnhuáyóu lubricant noun · lubricating oil 机器运行久了需要加点润滑油。 Edit Delete References Add reference No references for this word.