1. Photographs of the boy showed his physical immaturity. 该男孩的那些照片显示了他生理上的不成熟。
2. I am disgusted by the immaturity and stupidity presented in this column. 我对这个专栏的幼稚和愚蠢感到厌恶。
3. Statues and formulas, these mechanical tools of a serviceable use, or rather misuse, of his natural faculties, are the ankle-chains of a continuous immaturity. 雕像和公式，这些有用，或者更确切地说，滥用人类天赋的机械工具，是一种脚镣，持续且不成熟。
4. Physiological immaturity may be part of why infants and toddlers do not form extremely enduring memories, even when they hear stories that promote such remembering in preschoolers. 学龄前儿童即使听到能够加强记忆的故事，生理上发育不成熟也是导致他们无法形成长久记忆的原因之一。
5. Are we to put up with immaturity for ever? 我们是否要永远忍受不成熟？
