English audio - visual - speaking course is one of basic course of English major.
视听说课程是英语专业的技能课程之一。
This article is a topic about research on the visual-speaking system for intelligent building.
该文涉及的就是智能楼宇可视对讲系统研究的一个课题。
This article is a topic about research on the visual-speaking system for intelligent building.
该文涉及的就是智能楼宇可视对讲系统研究的一个课题。
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