汉词网为您提供communications systems是什么意思,communications systems的用法,communications systems的词性,communications systems的词根,communications systems短语搭配,communications systems真题例句等功能，学习单词超轻松。

汉词网为您提供telecommunications network是什么意思,telecommunications network的用法,telecommunications network的词性,telecommunications network的词根,telecommunications network短语搭配,telecommunications network真题例句等功能，学习单词超轻松。