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invention of improvement
invention of improvement
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[invention of improvement]
美
[invention of improvement]
中文释义
[专利] 改进(性)发明
单词分析
单词结构:
invention of improvement
字母数:24
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🎯 重点记忆:
单词拼写:invention of improvement
核心含义:[专利] 改进(性)发明
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更新时间:2025-12-22 22:39:23