英语词汇secondary pile怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	secondary pile
释义	secondary pile 简明释义次级堆网络释义 1 ?次级堆 ... 次级光电效应 secondary photoelectric effect 次级堆 secondary pile 庶极 secondary pole (=consequent pole) ... 短语 1 secondary pile hole cleaning 二次清孔权威例句 1. As long as the entrance requirements for universities and senior secondary schools remain based on the results of national exams which primarily test students' ability to memorise, parents will pile on the same pressures. ECONOMIST: China
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