The single-character id traditional Chinese characters that are extremely difficult to use are as follows:

綯, 蠡,窳, tired, moldy, su, carbuncle, chaos, luo, le, luo, zheng, hou , LAN, LAN, 鸾, 李,孓,孑,孓,咒,卍,卍,卍,卐,博,匸,卵,冂,屮,艸,芔,茻,卄,卅,卌,爨,灪, rough, 彠, 龘, 鐐,鉉,爩,谿,龘,烃,齑,退,兰,play,qiao,lan,zhou,hair,qi,sui,ning,yuan,li.

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Traditional Chinese characters, a font form of Chinese characters, are called "Traditional Chinese" in European and American countries. They generally refer to simplified characters in the Chinese character simplification movement. The replaced Chinese characters sometimes also refer to the entire Chinese regular script and official script writing system before the Chinese character simplification movement.

Traditional Chinese has a history of more than two thousand years. Until 1956, it was the standard Chinese character commonly used by Chinese people everywhere.

The "General List of Simplified Characters" actually contains 2274 simplified characters and 14 simplified radicals such as 讠[訁],饣[堠],纺[糹],钅[釒]. The sources of simplified characters include common characters, Ancient characters, cursive script, etc. also include merging Chinese characters, such as "hou" in "behind" and "hou" in "queen". In traditional Chinese characters, they are originally two characters. In order to omit strokes, "hou" with fewer strokes is unified. "After" was replaced.