SFD
查询英语单词中文释义、音标、发音和例句。
SFD
英
[SFD]
美
[SFD]
中文释义
abbr. Single Frequency Dialling 单频拨号
单词分析
单词结构:
SFD
字母数:3
记忆提示
🎯 重点记忆:
- 单词拼写:SFD
- 核心含义:abbr. Single Frequency Dialling 单频拨号
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更新时间:2026-08-28 03:55:06