润滑剂 rùnhuájì lubricant Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 我们需要给这些生锈的零件加点润滑剂。 wǒmen xūyào gěi zhèxiē shēngxiù de língjiàn jiā diǎn rùnhuájì. We need to add some lubricant to these rusty parts. Source: Dong Chinese Dictionary