如风过耳

Explanation: The same as the wind blowing in the ears. Analogy indifference, not related to involvement. 　　Source: Han Zhao Ye, "Wu and Yue Wu Wangshou Dream Biography" Fortunate for me, such as the autumn of the over the ear. " 　　Examples: Feng Sun listened to these words, they do ~, does not care. (Qing Zeng Pu, "Flower," the twenty-third back)