English example sentences with "on the fly"

The frost was such that the birds fell on the fly.
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This all has to happen without any human intervention, so the central computer software has been programmed and extensively tested to make sure all corrections can be made on the fly.
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"You can rewrite DNA on the fly, and you're using it to turn people into dinosaurs? But with tech like that, you could cure cancer!" "But I don't want to cure cancer. I want to turn people into dinosaurs."
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The dog knew on the fly that I was sick and needed him to go and warn my wife.
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Donald went to the address on the flyer.
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The spider jumped on the fly.
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Jones caught the ball on the fly.
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The software program has a table of values for some results, but calculates others on the fly.
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