单词:dialling call system
[通信] 拨号呼叫系统
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Part I Getting ready. A: 1. Person-to-person call 2. Connect call 3. Go through 4. Operator 5. End up 6. Information 7. Answer 8. Exchange 9. Touch-tone telephone 10. IDD B.Here are some short convers
发表于:2018-12-03 / 阅读(95) / 评论(0)
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