speech impediment造句

an impediment in speech=a speech impediment

John's slight speech impediment made it difficult for his mother to understand him.

Since he couldn't hear words clearly, he developed a severe speech impediment that made it almost impossible for others to understand him.

In demystifying the little-understood speech impediment, the award-winning film reveals myths and fascinating truths about stuttering, and has won praise from stutterers of all ages.