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並前往https://www.redcross.ca/training-and-certification/swimming-and-water-safety-tips-and-resources/swimming-boating-and-water-safety-tips/holding-your-breath-underwater

Holding Your Breath Underwater - Canadian Red Cross

Trying to hold your breath for much longer than this, especially under water, may be dangerous. Our bodies need both oxygen (O2) and carbon dioxide (CO2) to ...

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