Family and clan were the way in which people amassed and preserved property - they were your security in life.

家庭和家族成了人们聚敛和维护财富的地方——它们是你生活的保障。

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Sequences are more advanced. They allow order to be preserved across heterogeneous lists of property-value pairs.

序列更加高级，可以保持不同种类的属性-值对列表的顺序。

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The controller obtained is simple and easy to realize. Especially, the nonlinear property of the system is well preserved.

所得到的控制器结构简单，易于实现，保留了系统的非线性特性。

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This diverse range of sites demonstrates the wealth of natural, historical and cultural property contained and preserved within the UK today.

UNESCO: World Heritage Sites in the UK