上油 shàngyóu apply lubricant Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 这扇门太久没上油,开关时感觉很涩。 zhè shàn mén tài jiǔ méi shàngyóu, kāiguān shí gǎnjué hěn sè. The door hasn't been oiled for a long time, so it feels stiff when opening or closing it. Source: Dong Chinese Dictionary