Different dictionaries have different views on the structure of this word:
1. The Dictionary for Pupils published by the Commercial Press International Co., Ltd. on page 113 describes it as follows: Ding, 12 paintings, Ding Department, upper and lower structure.
2. The Dictionary for Pupils (Language Publishing House) edited by Li Xingjian.
3. The Dictionary for New Curriculum Pupils (People's Publishing House) edited by Tang Xiaoping describes it on page 13 as follows: Ding, Ding Department, 12 paintings, and up-and-down structure.
4. There are three ways to say "Baidu knows":
(1) Up-and-down structure, because the radical is "mu" and "Ding" is also an pictograph. (3) Monosyllabic characters. Dingzi is a unibody structure, and the word "mu" in the modern simplified Chinese character component is not the configuration part of the word "Ding", which shows neither sound nor meaning, but actually a pictographic representation of the belly of Dingzi; The left and right "cong" are not ideographic or phonetic components, but are pictographic representations of tripod feet. Since Oracle Bone Inscriptions's time, "ding" has been an pictographic character, and its shape is a bit like the word "Zhen", indicating a big-bellied container with feet. It is only after the official seal script was changed (that is, the stage when Xiao Zhuan became an official script) that the shape was transformed into the left and right "cong". Let's unify it. Personally, I think it's better to classify "Ding" as a word with upper and lower structure, because from the perspective of dictionary search, the radical of "Ding" is the "Mu" part, and although it is not a word below, it is also a part and a part of the word. The word "Ding" has two parts, so it can be classified as a word with upper and lower structure according to the division method of upper and lower structure words.