pain in back and loin

例句：

1. 1.He complained of severe back and loin pain after his long day at work.
   他工作了一整天后，抱怨着背部和腰部的剧烈疼痛。
2. 2. The patient wasadvised to rest for a few daysbefore seeking medical advice.
   病人被建议休息几天后再寻求医疗建议。
3. 3. Shesat on the couch withher legs crossed, trying toalleviate the pain in her back andloin.
   她坐在沙发上，双腿交叉，试图缓解背部和腰部的疼痛。