The compiler interacts with the user through an implementation of the Messenger interface.
通过Messenger接口的实现，编译器与用户进行交互。
Messenger is an interface that XM uses to report progress and errors to the user.
Messenger是一个接口，XM用它来向用户报告进度和错误。
From the very beginning, the user interface has been abstracted through the Messenger interface.
从一开始，就通过Messenger接口将用户界面抽象化了。
Messenger is used by the parser to report errors to the end user.
解析器使用Messenger来向最终用户报告错误。
To port XM to other user interfaces, implement the interfaces such as Messenger (see the previous section) that abstract the user interface.
要将XM 移植到其他界面，只需要像Messenger（请参阅上一节）那样抽象用户界面的接口即可。
The average user now spends 50 minutes a day on Facebook, Messenger and Instagram, thanks to an increasing push from the company to keep them from clicking away.
一般用户现在每天用50分钟看脸书，Messenger和Instagram，得益于该公司防止他们马上游移走的努力。
For example, MSN has user experience specialists who help improve its popular messenger "s functions."
例如：MSN就有专门的用户体验专家，他们帮助提升MSN常用功能的用户体验。
For example, MSN has user experience specialists who help improve its popular messenger "s functions."
例如：MSN就有专门的用户体验专家，他们帮助提升MSN常用功能的用户体验。
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