phone system是什么意思 phone system怎么读
phone system的英文翻译是什么意思，词典释义与在线翻译
Noun:- a communication system that transmits sound between distant points
phone system的用法和样例
- We had a new phone system installed last week.
上周我们安装了新的电话系统。 - The telephone system has broken down.
电话系统失灵了。
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