You regulate your breathing rate in order to accomplish that and we'll talk about this in a couple of weeks.
人们调节呼吸的频率来获得足量的氧气,我们过几周会讲到这方面内容
The respiratory system plays an important role in maintaining our internal environment at the proper level of oxygen, by bringing the right amount in.
呼吸系统的重要性在于,通过向体内输入适量的氧气,维持人体内环境中的氧平衡
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