How do I resign a first responder in a modal view with a Navigation Controller?
我如何把第一响应模态视图的导航控制器？
Returns a Boolean value indicating whether the receiver is the first responder.
返回一个接收者是否是第一响应者的标识（布尔值）。
Notifies the receiver that it is about to become first responder in its window.
报告接受者它将要在window 上成为为第一响应者。 默认返回 YES。
Any input is captured by the first responder, which tends to be the object that the user is directly interacting with.
任何输入都是由第一响应者先捕捉到的，它一般是与用户直接交互的对象。
The single-best "first responder" safeguard against all kinds of catastrophes is a combination of adequate savings and insurance.
单最好的“先遣急救员”，防止各种灾难，是一个足够的储蓄和保险相结合。
So, if we can get a first responder out to the scene even a minute quicker and get them to clear the accident a minute quicker, that reduces overall delays and congestion significantly.
所以如果我们可以让急救人员更快抵达现场清理事故，哪怕早一分钟，也能降低显著整体延迟和拥堵。
Returns a Boolean value indicating whether the receiver is willing to relinquish first-responder status.
返回一个布尔值指示调用该方法的对象是否取消了第一响应对象的状态。
Now the actor is working with Edison Chouest Offshore to build first-responder ships that could be deployed around the world to clean up future spills.
目前，这名演员正同爱迪生·乔斯特船务公司合作建造紧急救援船，这些船可以在世界各地部署，用于清理将来发生的原油泄漏。
Now the actor is working with Edison Chouest Offshore to build first-responder ships that could be deployed around the world to clean up future spills.
目前，这名演员正同爱迪生·乔斯特船务公司合作建造紧急救援船，这些船可以在世界各地部署，用于清理将来发生的原油泄漏。
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