1. Experts say hoarseness costs several billion dollars a year in lost productivity from people missing work. 专家们说人们因为嘶哑而无法工作，每年要损失几十亿美元的产值。
2. If hoarseness continues or the cause is unknown, doctors should perform an examination called a laryngoscopy. 如果出现持续性或是不明原因的声音嘶哑，医生应该给你做喉镜检查。
3. If using your voice is difficult, then you know what dysphonia is. The more common name for this disorder is hoarseness. 如果你发声困难，你就会明白什么是发声困难了。这种失调的症状更通俗的名字是嘶哑。
