秋高气爽

qiūgāo-qìshuǎng

[balmy autumn day; fine autumn weather; sky in autamn is high and atmosphere pleasant; the clear and crisp autumn climate] 形容秋天气候清明爽朗

方拟秋高气爽, 遣将西征, ...--清·梁绍壬《史阁部书》