persistent pain

基本解释

He just wants the doctor to figure out the cause of the persistent pain and how to get rid of it.
他只是要求医生能找出持久疼痛的原因以及如何治愈它。
The bottom line: Don't hesitate to call your doctor if you have persistent pain or a loss of function or anything unusual for you.
底线是：如果你出现持续不去的疼痛，或者失去某种功能，或者对你来说任何不同寻常的症状，那么不要迟疑，赶紧联系家庭医生。
If she is right, as she explained to an audience at the recent Forum of European Neuroscience in Vienna, she may have opened a door to the treatment of other forms of persistent pain.
正像她最近在维也纳举行的欧洲神经科学论坛上向听众解释的那样，如果她是对的，那么她或许已经打开了治疗其他形式的持续性疼痛的大门。

These drugs, used for treating patients with severe, persistent pain, provide needed relief for millions but also pose a serious risk of abuse, overdose, and death.
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