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إكتشاف أشخاص جدد وإنشاء اتصالات جديدة وصداقات جديدة
eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms
eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms
eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms
superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms
superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms