The tiny organisms, known as phytoplankton, also gobble up carbon dioxide to produce half the world's oxygen output-equaling that of trees and plants on land.
这些被称为浮游植物的微生物，吸收二氧化碳产生世界上一半的氧气量——这等于陆地上的植物和树木所产生的氧气量。
The VO2max is like the power output of a motor, Rapoport said. It's the maximum rate at which the muscles can take up oxygen to keep working.
最大氧耗量就像机动车的能量输出功率，就是肌肉吸收氧气继续工作的最高速度。
Increases Cardiac Output, stronger heart contractions pump more blood, increased stroke volume, thickens left ventricle wall (more muscular), decreases hearts' oxygen requirements.
心输出量增加，心脏收缩加强能泵更多的血液，心搏量增加，左心室壁变厚(更多肌肉)，心脏对氧气的需要减少。
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