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How native speakers pronounce “efficacy

1 example from real videos — listen, replay, loop.

1 / 1

without extensive testing and evidence of safety and efficacy. But we're about

How Screens Stole Childhood — and How to Get It Back | Jonathan Haidt | TED · TED

Example sentences

without extensive testing and evidence of safety and efficacy. But we're about

How Screens Stole Childhood — and How to Get It Back | Jonathan Haidt | TED · TED