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Date
Aug 17, 2022
Material
In fact, the Center for Disease Control in the United States, or the CDC, they stipulate a minimum of seven hours of sleep a night for the average adult.
Recording
https://cdn.voicetube.com/tmp/comments/880805/1660690729.mp3https://tw.voicetube.com/challenges/pronunciation/20220817?commentId=2351093
Notes
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