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Keep going معلومات علمية، معلومات ثقافية 15 يوليو 2015

السبب الحقيقي حسب المختصين بأن هدفه تصفية صوت الهواء أو النسيم وكذلك أنفاس الأشخاص، بحيث يظهر الصوت الحقيقي فقط. وربما هذا ملاحظ أك...

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