One important strategy involves the use of what lottery designers call extended play.

一个重要的策略被乐透设计者称作延伸玩法（extended play）。

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This strategy may be easily extended to other figure types.

这种策略可能被容易地扩展到其他图片类型。

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This strategy may be easily extended to other figure types.

这种策略可能被容易地扩展到其他图片类型。

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