translation.en: But those subtle changes in your voice over a long period of time are hard for you or your spouse to notice until it becomes so extreme and your voice has become so quiet.
translation.zh: 但是你声音的那些长时间的微妙改变 对于你和你的配偶来说是很难发现的，直到它恶化， 你的声音变得完全轻微的时候。