判若鸿沟

Explanation: Sentence: the difference; divide: ancient canal, in Henan Province today, the late Qin and Chu boundaries of a river is a metaphor for the boundaries of things. Describe the boundaries very clear, the difference is obvious. 　　Usage: The main predicate; as predicate; describe the boundaries very clear, very clear distinction between 　　Source: Qian Han, "Historical Records emperor of the century": "Xiang Yu fear, and HW is about, carve the world, those who cut the gap to the West Han, divide the East were to Chu." 　　Examples: Since then, the boundaries of old Chinese literature, ~. (Lu Xun's "pseudo-free book postscript") Thesaurus:  feel a different person