leg supporter

例句：

1. 1. The leg supporter helps me walk more comfortably.
   这个腿部支撑器让我走路更舒服。
2. 2. The patientneeded a leg supporter to help himmove around.
   病人需要用腿部支撑器来帮助他移动。
3. 3. The doctor prescribed thepatient a leg supporter for his recovery.
   医生为病人开了一个腿部支撑器，以助其康复。