这种部署模式有优点也有缺点。

There are advantages and disadvantages to this deployment model.

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为了演示使用设计模式的优点，假定不久以后，这些机器人发现它们不应在处于机器人模式时关闭。

To illustrate the advantages of using the design pattern, imagine that after a while, these robots have discovered that they shouldn't power down while being in robot mode.

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每一种模式都有各自的优点和缺点。

Each model has its strengths and weaknesses.

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