preoperational
US
・UK
A1 初級
adj.形容詞前運算的
Preoperational children often struggle with the concept of conservation.
n.名詞前運算思維
Preoperational thought is marked by the use of symbols and intuitive reasoning.
n.名詞前運算兒童
A preoperational child may believe that a taller glass contains more liquid, even if both glasses have the same amount.
