Your body's ability to take in, transport and use oxygen. This involves the lungs, heart and blood vessels.

身体吸收，运输和使用氧能力。包括肺，心脏和血脉。

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Regular classes will improve your ability to take in and use oxygen. As a result, your heart and lungs will become more efficient and you'll burn lots of calories too.

有规律地参加健身班训练会提高你的吸氧和用氧能力，使你的心肺功能得到提升，同时还能够消耗掉大量的热量。

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We often take these services for granted, such as the ability of the forest to filter water or produce oxygen.

UNESCO: Social and Human Sciences