The system of matrilineal clans was maintained throughout this period, even though some clans merged to form larger groups while others divided into smaller descent groups.

尽管一些氏族合并成更大的氏族，而另一些氏族则分裂成更小的氏族，但母系氏族制度在这一整个时期一直保持着。

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Though data is synchronized between systems and system databases within and outside the organization, this data interface approach falls short of supporting data interoperability.

尽管组织内外系统和系统数据库之间的数据已经同步，但这种数据接口方式不能支持数据互操作。

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Note, though, that using this instruction without care could lead to severe problems, and the system might crash badly.

但是，请注意，该指令使用不慎会造成严重的问题，系统可能会严重崩溃。

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Ryanair announced in 2004 that it would introduce gambling through an in-flight entertainment system, though this too has yet to come to fruition.

CNN: Gambling on airplanes, stalled at takeoff?

This, though, does not affect the system's optical properties and it can, indeed, see small, faint objects that are near large, bright ones.

ECONOMIST: The search for alien life

We like this, though it's still early days, the system works surprisingly well.

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