Developmental immaturity

• 发育不成熟

Developmental immaturity的用法和样例：

例句

1. This kind of behavior shows psychological immaturity.
   这种做法是心理不成熟的表现。
2. It traces the development of a young man from immaturity to maturity.
   它描写一位青年从不成熟到成熟的发展过程。