age-grade
美
英 
- un.〔教〕年龄班级
- 网络同年龄的人;年龄阶级;年龄层级
词形变化
复数:age-grades
英汉解释
英英解释
例句
On the system of establishing kindergarten and the age grade of children, there is no obvious difference in professional listless.
在办园体制、所教幼儿年龄段上,幼儿教师的职业倦怠状况无明显差异。
Collection and Culture in Vitro of the Preantral Follicles from Ovaries of Different Age-grade Mice
同龄小鼠腔前卵泡的采集和体外培养