这种边界是相对的，仅具有暂时的稳定性和有效性，它随着情境的变化而不断变迁。
This kind of boundary is relative, only has the temporary stability and the validity, it along with situation change, but unceasing vicissitude.
这种边界是相对的，仅具有暂时的稳定性和有效性，它随着情境的变化而不断变迁。
This kind of boundary is relative, only has the temporary stability and the validity, it along with situation change, but unceasing vicissitude.
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