pellant

例句：

1. 1. The doctor administered a pellant to the patient for pain relief.
   医生给病人注射了麻醉剂以缓解疼痛。
2. 2.The patient was given a pellant to help him sleep better.
   为了让病人睡得更好，医生给他注射了麻醉药。
3. 3.The surgery required the use of a pellant to numb the area before the operation.
   手术需要使用麻醉药来使区域麻木，以便进行手术。