In a social system structure, the system includes the formal system and the informal one.
在一个社会的制度结构中，制度包括正式制度和非正式制度。
But showing the complex social system with a constant structure is very rough.
但是，以一种固定不变的结构表现复杂的社会系统，是很粗糙的。
But showing the complex social system with a constant structure is very rough.
但是，以一种固定不变的结构表现复杂的社会系统，是很粗糙的。
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