Most of the configurable timeouts have default values that are set to cover the most common use cases, and so you might never have to touch them.

大多数可配置的超时都有默认值，设置为涵盖最常见的用力，因而您总是无需更改它们。

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By default, there is no set order for which gesture recognizers receive a touch first, and for this reason touches can be passed to gesture recognizers in a different order each time.

默认情况下，这些手势谁第一个接受到touch是无序的，所以手势可能每次都发生在不同的顺序。所以，我们可以用delegate和子类化来处理改变这些行为。

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Back in June 2009 when iOS 3 came out it had a slick new version of the Stocks app, which is installed by default on every iPhone and iPod Touch.

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