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operational stage
operational stage
英
[operational stage]
美
[operational stage]
中文释义
= concrete operational stage
单词分析
单词结构:
operational stage
字母数:17
记忆提示
🎯 重点记忆:
单词拼写:operational stage
核心含义:= concrete operational stage
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更新时间:2026-04-10 03:53:16