肌无力的英语怎么说

"肌无力"的英语表达是 "muscle weakness"。
"Muscle" 是指肌肉，"weakness" 是指无力或虚弱。因此，"muscle weakness" 指的是肌肉无力或肌肉虚弱。
来源：muscle 是英语单词，意思是肌肉。Weakness 是英语单词，意思是弱点或虚弱。
例句：
He has been experiencing muscle weakness in his legs.
(他的腿有肌肉无力的症状。)
The disease caused muscle weakness throughout her body.
(这种疾病导致她全身肌肉无力。)
The doctor said my muscle weakness is caused by lack of exercise.
(医生说我的肌肉无力是因为缺乏锻炼造成的。)