sympathetic nerve system

例句：

1. 1. The doctor explained the symptoms of the patient's illness to the family.
   医生向家人解释了病人的症状。
2. 2. The researcher found that the sympathetic nerve system plays a crucial role in thebody's response to stress.
   研究者发现，交感神经系统在身体对压力的反应中起着关键作用。
3. 3. The patient was given medication to help regulate his sympathetic nerve system.
   患者被开了药来帮助调节他的交感神经系统。