在事件驱动环境中，视图通过事件处理程序调用代码。

In event-driven environments, the view invokes code through event handlers.

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现在，可编程的 Web 浏览器为新一代的应用程序开辟了一种全新的事件驱动环境。

Now, programmable Web browsers have opened a new event-driven environment to a new generation of applications.

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如果一个特定区域里的气候呈现出如此复杂而易变的天气环境，又被如此众多的因素驱动着，那就没有哪一种天气事件能归结于天气变化。

Weather within a given region occurs in such a complex and unstable environment, driven by such a multitude of factors that no single weather event can be pinned solely on climate change.

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