风吹草动

Explanation: The slightest wind blows, the grass shaking. Small changes metaphor. 　　Usage: Joint type; as object, attribute; and used in conjunction with other 　　Source: "The Collection of Wu": "stealing a trace stolen Road, drink gas sufferance. Sign of trouble, even if the possession of shape." 　　Examples: If behind some ~, was found not to see your father said no face, communication will go out into the niche of people how to do? (Mingling 濛 beginning "of half an hour Pai An Jing Qi" Volume XIII) 　　Riddle: Based on my housing triple Mao