The unit personalities and intractability add a whole new depth to a game that may not be recognized on the surface, but for one reason or another keeps us coming back for more.

游戏单位的个性化设计和独特性给游戏增添了全新的深度，它也许不会被大家一眼所认出，但是却能够使我们回味无穷，让我们欲罢不能。

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This sense of urgency is another component that keeps people returning to the game, even to the point of scheduling their social life around their crops maturing.

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Reinsurance is a process whereby an insurance company spreads its risk by transferring a portion of a policy's liability to another insurer, which keeps part of the premium.

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If they face a government shutdown, they just pass another temporary spending bill that keeps the doors open.

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