in Britain, any of the four divisions of the National Curriculum, studied by pupils aged 5–7, 7–11, 11–14, and 14–16 respectively
| 单词 | Key Stage |
| 释义 | Key Stagenounin Britain, any of the four divisions of the National Curriculum, studied by pupils aged 5–7, 7–11, 11–14, and 14–16 respectively |
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英语词典包含66266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。