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ページの作成:「<br>Everyone knows that air is essential for human life; more precisely, the oxygen in air is crucial for life. A human breathes in roughly 11 000 litres of air every sin…」
BennieUhu0 (トーク | 投稿記録) (ページの作成:「<br>Everyone knows that air is essential for human life; more precisely, the oxygen in air is crucial for life. A human breathes in roughly 11 000 litres of air every sin…」) |
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