柯林斯詞典stratify /?str?t??fa?/ 1. V to form or be formed in layers or strata 成層; 使分層 返回 stratify劍橋詞典to arrange the different parts of something in separate layers or groups 使分層；使成層；將…分組 The sample of people questioned was drawn from the university's student register and stratified by age and gender . 調(diào)查問卷的抽樣人群選自大學(xué)的學(xué)生名單，按年齡和性別分組。 a stratified society 分層的社會 返回 stratify