暧昧之情

Explanation: Bright when behavior, there are ulterior hidden reason. Also refers to men and women love each other may be a private matter Wyatt. 　　Usage: Partial official; as object; containing derogatory 　　Source: Ming Feng Meng "Jingshitongyan" Volume 13: "Do the magistrate, can be ambiguous profile of human love, prison break world of suspicion." 　　Examples: And Needing and outside a room, not without ~. (Ching Ming teaches the human, "Ho-kau Biography" XV back)