1、Exercise intolerance and fatigability are common symptoms of chronic fatigue syndrome.
慢性疲劳综合征常见症状包括运动不耐受和易疲劳性。
2、Muscle fatigability can be caused by a variety of factors, including muscle weakness and poor blood circulation.
肌肉易疲劳性可以由多种因素引起，包括肌肉无力和血液循环不良。