stammer
🇺🇸
/ˈstæmər/
🇬🇧
/ˈstæmə(r)/
to speak with difficulty, repeating sounds or words and often pausing
He would stammer when he felt nervous.
彼は緊張するとどもる。
a speech problem where someone repeats sounds or words and often pauses
Her stammer made it hard to speak clearly.
彼女の吃音ははっきり話すのを難しくした。