plectra

例句：

1. 1. The doctor prescribed the patient a plectra for his muscle spasms.
   医生给病人开了一种药物来治疗他的肌肉痉挛。
2. 2. The patient was treated with plectra to relieve his muscle spasms.
   患者被用plectra治疗以缓解他的肌肉痉挛。