back joint carrier

例句：

1. 1. The back joint carrier isdesigned to support the spine during exercise.
   背关节承载器设计用来在运动时支撑脊柱。
2. 2. The doctor prescribed a back joint carrierfor her to help relieve her pain.
   医生给她开了一个背关节承载器来帮助缓解她的疼痛。
3. 3. The back joint carrier wasessential in preventing further injury to the injuredarea.
   背关节承载器对于防止受伤区域进一步受伤至关重要。