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downward system of ventilation
downward system of ventilation
英
[downward system of ventilation]
美
[downward system of ventilation]
中文释义
下向通风系统
单词分析
单词结构:
downward system of ventilation
字母数:30
记忆提示
🎯 重点记忆:
单词拼写:downward system of ventilation
核心含义:下向通风系统
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更新时间:2026-01-13 14:12:50