最終更新日:2024/06/27
Chaque atome dans l'univers est constitu e d'un noyau entour e d' lectrons.
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Every atom in the universe is made up of a nucleus surrounded by electrons.
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Chaque atome dans l'univers est constitu e d'un noyau entour e d' lectrons.
Every atom in the universe is made up of a nucleus surrounded by electrons.