People often hold their breath, or take in too much oxygen and hyperventilate.
人们往往会屏住呼吸，或吸入过多的氧气或换气过度。
You can have him hold his breath with the A button to let him float in place.
你可以按住A键，这样耀西会自己憋住气，这它就会浮起来。
Hold your breath for just a few seconds in this standing position.
在站立位置时，屏住呼吸几秒钟。
Maintain the natural curve in your lower back, and don't hold your breath.
保持腰背部的自然弯曲，不要屏住呼吸。
Note, in this case, do not take very deep breath, but hold your breath.
注意，这个情况下，不要做很深的呼吸，但是屏住呼吸。
Now, breathe in, take a big breath. Hold your breath. Now you can breathe out.
现在吸气，把气吸足，屏住气。现在呼气吧。
Don't hold your breath in any posture or without your teacher's instructions.
在没有老师指导的情况下，任何一个动作都不要屏气。
Conclusion Single breath hold cine MRI is valuable in evaluating left ventricular function.
目的评价单次屏气电影法测量心功能的价值。
Let me listen to your lungs, deep breath, breathe in, hold it and breathe out.
让我诊听一下你的肺部，请深呼吸，吸气，屏气，呼气。
Inhale so the lungs are about two-thirds full, and then hold the breath in.
吸气，让肺部充满大约三分之二，然后内屏息。
Let me listen to your lungs, deep breath, breathe in , hold it , breathe out.
让我听听你的肺部、深呼吸、吸气、憋气、呼出。
Let me listen to your lungs, deep breath, breathe in , hold it , breathe out.
让我听听你的肺部、深呼吸、吸气、憋气、呼出。
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