chest and back pain

例句：

1. 1. He was ina lot of pain after his surgery.
   他的手术之后非常疼痛。
2. 2. She had chest andback pain for several days before she couldget any rest.
   她几天几夜都感到胸痛和背痛，无法休息。
3. 3. The doctor prescribed medication to help withher chest and back pain.
   医生开了药来帮助缓解她的胸痛和背痛。