凤凰职教南通中心英语四级背词工具：词库来源与许可
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本目录中的 cet4-words.json 由 ECDICT 的 ecdict.csv 筛选生成，只保留 tag
字段中包含 “cet4” 的条目，并保留单词、音标和中文释义三个字段。

数据来源：
ECDICT - Free English to Chinese Dictionary Database
https://github.com/skywind3000/ECDICT

筛选日期：2026-07-22

说明：
ECDICT 的 “cet4” 标签仅作为学习参考。本工具不将其表述为当年官方考试大纲；
英语四级考试范围及要求请以当年主管部门正式发布的信息为准。

ECDICT LICENSE
--------------

MIT License

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