单词	stratified sample
释义	stratified sample noun : a statistical sample obtained by breaking the universe down into smaller parts made up of relatively homogeneous units and taking a sample from each part Word History Etymology stratified (past participle of stratify) + sample
随便看	manure manure salts manured manurer manurers manures manurial manuring manus manus Christi manuscript manuscript catalog manuscript ticket manuscript writing manuscriptal manuscription manuscripts manuses manusina manutagi manutenency manuterge manuterges manutergia manutergium

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。