红细胞内血红蛋白（携氧的蛋白）的量。

The amount of hemoglobin (the protein that carries oxygen) in the red blood cells.

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正常的动脉是光滑柔软的， 携氧的血液能畅通无阻地在血管里流动。

Normal arteries are smooth and flexible, allowing oxygen-rich blood to flow through easily.

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他们认为最大携氧量是有氧能力的最基本的指标，研究表明更多和更强的训练可以提高最大携氧量。

They consider maximum oxygen uptake to be the most basic measure of aerobic fitness, and they've shown that it increases as you train more and harder.

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Some of them have the capability of becoming red blood cells which carry oxygen in the blood.

一些能够成为红细胞,红细胞是血中携氧的细胞

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