sciatic nerve

例句：

1. 1. He suffered a severe injury to his sciatic nerve while hiking in the mountains.
   他在爬山时严重伤了坐骨神经。
2. 2.The doctor advised him to rest and avoid straining his sciatic nerve.
   医生建议他休息，避免拉伤坐骨神经。
3. 3.Sciatica is a condition that causes pain and numbness in the legs caused by damage to the sciatic nerve.
   坐骨神经痛是一种由于坐骨神经受损而导致的腿部疼痛和麻木的状况。