800 number
查询英语单词中文释义、音标、发音和例句。
800 number
英
[800 number]
美
[800 number]
中文释义
【电信学】受话人付费业务(指前3位数字为800的电话号码)
单词分析
单词结构:
800 number
字母数:10
记忆提示
🎯 重点记忆:
- 单词拼写:800 number
- 核心含义:【电信学】受话人付费业务(指前3位数字为800的电话号码)
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更新时间:2026-09-21 07:29:35