postanal plate

例句：

1. 1.The patient was admitted to the hospital for further treatment.
   病人被收治入院接受进一步治疗。
2. 2.The doctor advised him to take a rest and avoid straining his back.
   医生建议他休息，避免拉伤背部。
3. 3. The patient's postanal plate was removed during the operation.
   手术中移除了患者的肛门板。