Use "callback" em uma frase

1. I took three slow and deep inhales as the phone rang after trying a callback

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2. Nope, nope, that’s a callback to the asparagus

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3. Or you could get a callback from the doctor after a supposedly routine checkup

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4. As we do this, we create a callback function, which reads function(err,balance) {}

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5. A callback function is called at some future date

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6. mp/django-obs] is a third-party Django package that can be used to register callback functions that are executed when there are changes in several Django fields

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