Abstract: This paper deals with the developmental characteristics of 4 to 10 -year-old children in understanding the numeral-classifier compounds "some" and "many"by the experimental method of studying children's capacity in understanding fuzzy classifiers. The results show that children's capacity in understanding these two numeral-classifier com- pounds is closely related to the given universe of discourse (number field), and that children understand the numeral-classifier compound "some" earlier than "many", which means that the developmental characteristics are as follows: 4 to 10-year-old children can understand "some" well at [0, 10] and [0, 20]; children over 6 can only under- stand the meaning of the word "many" at [0, 10]; and 4-year-old children get confused with the meaning of the words "many" and "whole".

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