When we inhale, our lungs fill with air, which press the diaphragm downward.
当我们吸气时，我们的肺会充满空气，空气会把隔膜往下压。
What exactly causes them? When we inhale, our lungs fill with air, which press the diaphragm downward.
究竟什么引起岔气?当我们吸气时，我们的肺会充满空气，空气会把隔膜往下压。
Next, take the head gently in two hands and press it very slightly downward (do not pull), asking the mother to push at the same time, to deliver the front shoulder.
接下来，用两只手温柔的接住宝宝的头部，略微往下降一点(不要拉扯)，同时要求妈妈用力推出宝宝，产出前肩部。
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