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

约翰有轻微的言语障碍，这令母亲很难理解他的话。

柯林斯例句

It's difficult to understand him because he has a speech impediment.

他的话很难听懂,因为他讲话口吃.

辞典例句

He noted a progressive speech impediment.

他发觉,说话障碍逐渐厉害起来.

互联网

We all don't think he is fit for the joB, Because he has a speech impediment.

我们大家都认为他干这项工作不合适, 因为他说话口吃.

互联网