事件是一个十分有用的主意，本章将说明如何通过编写你的事件订阅接口来实现消息的邮件订阅功能。
Events et al are a very powerful idea. This chapter will explain how to write your own event subscribers by implementing a mail subscription feature for messages.
这只是一些我们发现能帮助失业者度过难关有用的主意，如果你有什么这方面的好技巧，请告诉我们。
These are just a few ideas that we have found helpful in helping people get through this difficult time. Please let us know what you have found useful in your experience of being unemployed.
没有办法能使你的主意对于在这个星球上的每一个人都有用，而且如果它是基于此而工作的，它从一开始就注定会失败。
There’s no way to make your idea useful to everybody on the planet and if it relies on that to work, it’s doomed from the start.
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