凄然泪下

Explanation: Sad: cold. Describe the desolate sadness. 　　Source: Ming Luo Guanzhong's "Romance of Three Kingdoms," the fifty-fifth back: "Xuan listening, suddenly remembered in the heart of the matter Wu, feel sad tears." 　　Examples: On the road non-stop day, back to the East are, met his wife, exceedingly ashamed blush all day, just attack the book in the library energies. Think of the Poor of every scene, then ~. ★ Ming Feng Meng, "Awaken the common saying," XXV