sudden death caused by autoimmune diseases

例句：

1. 1. The suddendeath of the CEO has caused widespread concern among employees.
   首席执行官的突然去世引起了员工的广泛关注。
2. 2. The sudden death of a loved one can be devastating for those left behind.
   亲人的突然去世对那些留下来的人来说是毁灭性的。
3. 3. The sudden death of the firefighter was a tragic accident.
   消防员的突然死亡是一场悲剧性的意外事故。