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a vein of coal
a vein of coal
英
[a vein of coal]
美
[a vein of coal]
中文释义
煤层
单词分析
单词结构:
a vein of coal
字母数:14
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🎯 重点记忆:
单词拼写:a vein of coal
核心含义:煤层
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iaec
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更新时间:2026-01-20 05:20:37