Europe currently has 2 availability zones.

欧洲目前有2个可用区域。

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Note that AWS has an option to deploy the database to multiple availability zones.

请注意，AWS有一个向多个可用性区域部署数据库的选项。

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You can place the instances in different geographical locations or availability zones.

可以把实例放在不同的地理位置或者可用区域内。

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Amazon Web Services even offers tools to help, including regions, availability zones, and multiple types of storage services.

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