age norm
英汉例句
- 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。