The urban recreation system is a whole part with certain structure and function which incorporates recreation region system,recreation behavior system, recreation supply system and recreation support system.
城市游憩系统是整合了游憩地域系统、游憩行为系统、游憩供给系统、游憩支持系统在内的具有一定结构和功能的整体。
参考来源 - 西安城市游憩系统结构与功能优化研究·2,447,543篇论文数据，部分数据来源于NoteExpress
And the legal behavior system is integrated and rigorous theory among the traditional civil law theories.
法律行为制度理论是传统民法学理论中结构完整、逻辑严密的理论。
As a way of relief by private power, self-help behavior system has already existed in the early human society.
自助行为制度作为私力救济的一种方式，在人类社会早期就已经存在。
One basic statement of attachment theory is that all human beings are born with an attachment behavior system aimed at maintaining proximity to attachment figures.
依恋理论的一个核心主张就是，人类都有一个天生的依恋行为系统，该行为系统围绕着向依恋对象寻求亲近这一目标而组织。
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