Tu Tu, a Chinese word, means heavy appearance. "Chu Ci, Nine Sighs and Fanzheng": "The Millennium is full of troubles, and the autumn wind is rustling." Wang Yi's note: "Tu Tu, thick appearance." In Xie Tiao's poem "Rewarding King Jin 'an" in the Southern Dynasties, he said: "The branches are early and vigorous, and the branches are smeared late. Tang Wu's "A New Record of Tea Picking: In the Temple is a four-rhyme poem in Langzhong": "Lu, picking a basket of tea is not beneficial." He Ming Jingming's "Hou Bai Ju Fu": "The leaves are self-sufficient, and the branches are straight and strong." "There are animated characters and actresses of the same name.