Vocabulary is a dynamic and open system, and the most active element in language.
语言中的词汇是一个动态的开放性系统，是语言中最活跃的因素。
"Exploratory constructivism" teaching makes the structures of cognition, ability and mental form a dynamic ordered open system, thus make the teaching course full of vigor.
“探究——建构”教学使认知结构、能力结构和心理结构构成了一个动态的有序开放系统，从而使教学过程充满了活力。
An example is given to illustrate that the system is completely open mode, expansibility, compatibility with high safety, which can support cooperative dynamic work and realize resource sharing.
实例表明，该系统具有完全的跨平台性、可扩展性和开放性，足以支持人机环境下协同动态工作和资源共享。
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