Moganshan flowers and trees are deep, guesthouse

Quick answer：

Moganshan is a famous mountainous area in Zhejiang Province, China, known for its lush greenery and beautiful scenery. 'Flowers and trees are deep' implies a rich and dense vegetation, which is typical of Moganshan. 'Guesthouse' suggests a place where travelers can stay. The phrase might refer to a guesthouse located in the midst of the lush greenery of Moganshan, offering a tranquil and picturesque accommodation experience.