[计] concept formation and perception

gài niàn de xíng chéng yǔ gǎn zhī ㄍㄞˋ ㄋㄧㄢˋ ㄉㄜ˙ ㄒㄧㄥˊ ㄔㄥˊ ㄩˇ ㄍㄢˇ ㄓ