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first-class matter
first-class matter
英
[first-class matter]
美
[first-class matter]
中文释义
[美国英语](第)一类邮件(邮递)
单词分析
单词结构:
first-class matter
字母数:18
记忆提示
🎯 重点记忆:
单词拼写:first-class matter
核心含义:[美国英语](第)一类邮件(邮递)
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更新时间:2026-01-22 16:29:17