任一给定的服务类型有且只有一个服务实现。

There may exactly be only one service of a given service type.

youdao

你在家庭中所扮演的角色有且只有一个。

The role you have in the family is just that a role.

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每个P 8objectstore有且只有一个数据库存储区域。

Each P8 object store has one, and only one, database storage area.

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要记住，在任何时候，你的竞争对手有且只有一个，那就是你自己。

Remember, at any given moment, you are in competition with one person and one person only – yourself.

youdao

对项目有一个且只有一个集成流 。

There is one and only one integration stream for a project.

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对项目有一个且只有一个集成流 。

There is one and only one integration stream for a project.

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