the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs
a single complete act of breathing in and out;
"thirty respirations per minute"
the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
respiration的用法和样例：
例句
用作名词 (n.)
He was using his accessory muscles of respiration. 他在用呼吸辅助肌进行呼吸。
Respiration is difficult at great heights. 在很高的高原上呼吸很困难。
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