Echoes from beginning to end.
The function of the sixth paragraph: In terms of content, it expresses praise for the Lijiang River and Lijiang people by describing the beautiful scenery of the Lijiang River to reveal the main purpose of the article. The structure echoes the beginning so that the beginning and end of the article echo.
"The Charm of the Li River: Liu Bingqing's Calligraphy and Painting" is a collection of Mr. Liu Bingqing's calligraphy and painting works in recent years. It contains more than 100 works, including Chinese paintings, calligraphy and seals.