柯林斯词典stratify /ˈstrætɪˌfaɪ/ 1. V to form or be formed in layers or strata 成层; 使分层 返回 stratify剑桥词典to arrange the different parts of something in separate layers or groups 使分层;使成层;将…分组 The sample of people questioned was drawn from the university's student register and stratified by age and gender . 调查问卷的抽样人群选自大学的学生名单,按年龄和性别分组。 a stratified society 分层的社会 返回 stratify