为什么写在黑板上而不广播?
发布-订阅(Publish - Subscribe)设计模式指导我们如何在不广播事件的情况下管理它们。
The Publish-Subscribe design pattern taught us how to manage events without broadcasting them.
我们也有许多人记不住所听的内容,即使在听母语广播时也不例外。
Most of us can’t remember what we’ve just heard, even when we’re listening to broadcasts in our own language.
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