The most common symptom is feeling tired because the body is not receiving enough oxygen.
最常见的症状是缺氧而造成的疲乏。
Heart tired feeling, is a dull people can not tell, some anxiety.
心累的感觉，是让人说不出的一中隐痛，有些煎熬焦虑。
One big age, always does not have thedirection feeling, is really tired!
一大把年纪了，总是没有方向感，真累！
One big age, always does not have thedirection feeling, is really tired!
一大把年纪了，总是没有方向感，真累！
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