Sizing the next layers down is compounded, because it depends largely on how the game engine is implemented.

下一层的规模评估很复杂，因为它在很大程度上取决于实现游戏引擎的方式。

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Sizing of this tier depends almost entirely on the implementation of the game engine.

这一层的规模几乎完全取决于游戏引擎的实现。

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The sizing of the middle tiers depends on the architecture of the game engine itself.

中间层的规模取决于游戏引擎本身的体系结构。

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