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2026-01-29 17:46:55

　　注：文本及音频选自《新托福iBT词汇分类突破》Unit106；单词释义主要来自《美国传统词典》。 　　　　Blood is re-oxygenatedin the lungs, where the oxygen enters the blood through tiny capillaries and combines with the hemoglobinin the red blood cells, before returning to the blood stream. Air is drawn into the lungs by inhalingand is the source of the oxygen that...