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Story summaryعلوم2026/1/25٢٥ يناير ٢٠٢٦07:14 دقيقة
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علوم2026/1/25٢٥ يناير ٢٠٢٦07:14 دقيقة
Read at Deutsche WelleOpens the original publisher in a new tab. Full articles belong to their publishers; a subscription may be required.