They want to print in some extra information.

他们想要印入一些号外消息。

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Then combine this base with some extra information unique to the service.

然后将这一基础密码和那些服务器信息相结合即可。

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When this happens you must guide the compiler by adding some extra information in the form of characters associated with the literal value.

方法是用与字面值关联的字符形式加入一些额外的信息。

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But if gestures convey some vital extra information, people in larger groups may limit their communication to nearby co-foragers.

ECONOMIST: Human communication: Gesture politics | The