这只离摄影师最近的白鲸正呼出空气以帮助其下潜。
The whale nearest to the photographer is releasing air to aid its descent.
他们跑2步吸入空气,再跑2步呼出空气。
They breathe in while taking 2 steps and out while taking 2 steps.
有氧运动,通过提高呼吸所需肌肉的力量,有助于肺脏吸入和呼出空气。
Aerobic exercise helps strengthen the muscles involved in respiration. Thus, the flow of air in and out of the lungs is aided.
But it can be acquired in the air, from patients that are from- from other individuals that are infected.
天花会通过空气传播,通过病人和其他感染者呼出的空气传播
The main goal of the respiratory system is to bring fresh in so that you can extract oxygen from it, and blow used air out so that you can rid of carbon dioxide which is the end product of carbon metabolism inside our bodies.
呼吸系统的主要功能是,吸入新鲜空气,以便获得空气中的氧气,呼出废气,以便排出二氧化碳,二氧化碳是人体内碳代谢的终产物
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