If an application sees the warning flag set, it could inform the user that this data is already in use and any changes made may be lost.

如果应用程序发现设置了警告标记，它将通知用户该数据已被使用，所做的任何更改可能都会丢失。

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He sees a warning flag in the fact that a good portion of the IPO proceeds were targeted at cashing out earlier investors.

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But having that central controller of what can appear on iOS devices essentially banning material on taste grounds raises a little warning flag.

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Large-short positions that have been building in some big-bank stocks could be a warning flag to investors who saw a nice performance in the financial sector last year and are trawling for their next big winner.

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