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Last Updated：2024/06/11
意味を覚えるための辞書問題
意味を覚えるための辞書問題

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IPA(Pronunciation)
/hæf laɪf/

(放射性物質の)半減期

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Google Translation / DeepL Translation

ウラン238の半減期は45億年です。

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(放射性物質の)半減期

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意味を覚えるための辞書問題
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