Farewell to Cambridge was originally a well-known poem by Xu Zhimo, a modern poet, and a masterpiece of crescent poetry. The whole poem takes the emotional ups and downs when leaving Cambridge as a clue to express the deep affection for Cambridge's departure. The language is light and soft, and the form is exquisite and mellow. The poet paints a flowing picture by alternating reality and reality, which constitutes a wonderful artistic conception everywhere. It shows in detail the poet's love for Cambridge, his longing for his past life, and his helpless sadness at present, which is the swan song in Xu Zhimo's poems. Later, it was adapted into a cover song of the same name by later generations.