完全收缩你的腹部以便你尽可能的呼出你肺部的空气。重复十次。
Contract your stomach completely so that you push as much air out of your lungs as possible.
AOAGO笔记本电脑冷却垫能持续工作八小时以上，自然条件下颗粒或晶体在垫内会随着气温下降而收缩，恢复原始状态，重复使用。
AOAGO cooling mat can work continually over 8 hours. When coming back to the natural condition, it resumes its original shape and can be used repeatedly.
AOAGO笔记本电脑冷却垫能持续工作八小时以上，自然条件下颗粒或晶体在垫内会随着气温下降而收缩，恢复原始状态，重复使用。
AOAGO cooling mat can work continually over 8 hours. When coming back to the natural condition, it resumes its original shape and can be used repeatedly.
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