age norm

常见例句

Social age norm developmental norm normal distribution validity
社会年龄常模发展常模正态分布效度
He prefers to assort with people of his own age.
他更喜欢与自己的同龄人交往。
Even the best quality rubber will perish with age.
就是最佳质量的橡胶也会因老化而腐烂。
He come to the fore as a physicist at an early age.
他在早年就成了杰出的物理学家。
The average age of the boys in this class is fifteen.
本班男生的平均年龄是十五岁。
Education should not be restricted to any one specific age group.
教育不应限制在任何特定的年龄组上。