n.[医]构音困难；构音障碍
Dysarthria is a speech disorder resulting from damage to the motor execution system of the central nervous system and resulting in muscular weakness and reduction in motor control. 构音困难肇因于中央神经系统中运动执行系统的损害，发音不良会导致肌肉无力且降低运动的控制。
His speech was fluent without dysarthria. 他的讲话不流利的构音障碍。
The most common speech disorder of parkinsons disease is hypokinetic dysarthria. 运动减少性构音障碍是帕金森病的主要言语障碍。
