Dayan River-My Nanny is a full text about Dayan River and its grades.

Hard-working and kind rhetoric techniques include repetition, parallelism, association and contrast of expression; The lyric way is narrative and detail description.

"Rain Lane" and "Farewell to Cambridge" are mostly lyrical, and the combination of reality and reality is a graceful and restrained way.

However, this article is full of narration and discussion, with impassioned tone and direct lyricism, highlighting images with association and revealing the theme by contrast.