金风送爽

Explanation: Gold Wind: refers to the autumn wind. Yin and yang in ancient times to explain the seasons, autumn is golden. Autumn brings cool. 　　Source: Lu Xun, "stated the Christmas wish of Hong Kong" cool breeze, cool Lu Jing-Qiu. " 　　Examples: ~, Lu Jing-Qiu cool. (Lu Xun, "state the Christmas wish of Hong Kong")