空气❶air
❷atmosphere
新鲜～fresh air/潮湿～moist air/热烈友好的～warm and friendly atmosphere/制造紧张～create a tense atmosphere/～净化air cleaning (or purification)/～净化器air purifier;air cleaner/～冷凝器air condenser/～冷却air-cooling/～调节器air conditioner/～的污染物airborne pollutant/～污染防治air pollution control/～污染物浓度air pollutant concentration/～压缩机air compressor/～质量air quality |