保温 bǎowēn insulation Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: keep warm All meanings 2 bǎowēn 2 insulation 1keep warm 1 1 sentence for 保温 (bǎowēn — keep warm) 这瓶热水可以保温一整天。 zhè píng rèshuǐ kěyǐ bǎowēn yī zhěng tiān. This bottle of hot water can stay warm all day long. Source: Dong Chinese Dictionary