Excuse me, who knows the definition of "the long river comes down to the root, and the deep sea stands in the quiet and steep Lego"?

Literally, a long river may refer to the Yangtze River, the Yellow River and weak water. If the mausoleum in Liling forest behind is interpreted as a mausoleum, then this long river should be Weishui, which wraps Chang 'an. The tombs of Han and Tang Dynasties are all in the suburbs of Chang 'an, surrounded by many things.

The second sentence is a kind of antithesis of the first sentence, which is often used in poetry, especially in seven-character quatrains and five-character quatrains. The long river faces the deep sea, and the tranquility barely corresponds to the settlement, but the steep Lego is somewhat unsmooth, so please ask the questioner to take out the whole poem and analyze it together. Understanding the second sentence alone means that in the deep sea, lonely cliffs stand there and enjoy themselves.