以叔援嫂

Explanation: Refers to the act of expediency. 　　Source: "Lou on Mengzi," Kun said, 'men and women give and accept not pro, Courtesy? 'Mencius said,' gift also. 'Said,' Sister drowning, the assistance of the hand of peace? 'Said' Mrs. drowning is not aid, is the wolf also. Men and women give and accept not pro, Li Ye; Sao female aid of the hands of the right also. '" 　　Examples: Chun Tao if you are willing to change makeup of a battle, taking saliva hand tube Qian Kui Name ... ... This is How to make ~, a result of acute exercise. ★ Ming Xu Wei "Female champion" the first out