anodynia

例句：

1. 1. The patient was given a strong anodyne to relieve the pain.
   病人被给予强效的镇痛剂以缓解疼痛。
2. 2. A doctor prescribed an anodyne for her headaches.
   医生为她头痛开了一种镇痛剂。
3. 3.An anodyne is often used as a preventative measure against toothaches.
   常用于预防牙痛的镇痛剂。