空气品质 kōngqìpǐnzhì air quality Definitions Defs Origin Strokes Stroke Words Sentences Sents 空气 空氣 kōngqì noun air the gas mixture surrounding the earth, primarily composed of nitrogen and oxygen品质 品質 pǐnzhì noun quality The grade or excellence of a product or service; also refers to general quality such as "air quality" or "quality of life".
