When you are learning to ride a bicycle, you often fall off.

初学自行车时，常会从车上掉下来。

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Longtime faves often fall off the cultural radar.

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If the hypothesis is true, people would fall off the vege-wagon more often when exposed to real bacon sizzling in the pan.

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If engineers were held to the same standards, bridges would collapse as often as banks, planes would fall from the sky (if they ever got off the ground), and cyclical blackouts would be a permanent feature of our electrical grid.

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