滴水难消

Explanation: Although the meager thing that can not be good enough. 　　Source: Yuan Anonymous "kill a dog to persuade her husband" wedge: "Brother! Drip Nanxiao. Hugh Road is a brother to wine, you are so empty, the mutual affection is your brother." 　　Examples: With the money as long as you drink, no money has Nanxiao dripping. ★ Qing Hong Sheng, "Palace of Eternal Youth suspected Prophecy"