醛 quán aldehyde Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 新装修的房子需要多通风以去除甲醛。 xīn zhuāngxiū de fángzi xūyào duō tōngfēng yǐ qùchú jiǎquán. Newly renovated houses need plenty of ventilation to remove formaldehyde. Source: Dong Chinese Dictionary