","is the key to move left and right in the input method state, and "eh" is the five-stroke typing input yyl and press enter.

Special symbols Special symbols are real words, which can be copied and pasted into the text, such as mathematical symbols, unit symbols, tabs and so on.

Brief introduction of radicals

Modern Chinese dictionaries and dictionaries adopt radical division method based on word retrieval principle. According to the font structure of Chinese characters, radicals and internal characters are sorted by the number of strokes, and the same number of strokes are horizontal (1), vertical (2), left (3), dot (3) and fold (3). For example, The Great Chinese Dictionary, Modern Chinese Dictionary and Xinhua Dictionary all adopt this style. Compared with the radicals of the word-making principle, the radicals of the word-finding principle are more convenient to find words.