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grade retention
grade retention
英
[grade retention]
美
[grade retention]
中文释义
留级
单词分析
单词结构:
grade retention
字母数:15
记忆提示
🎯 重点记忆:
单词拼写:grade retention
核心含义:留级
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更新时间:2025-12-13 23:30:47