marcaine(局麻药)

例句：

1. 1. The doctor administered a local anesthetic to numb the area before surgery.
   医生在手术前给病人打了局部麻醉药，以使区域麻木。
2. 2.Marcaine is often used as an anesthetic for surgical procedures.
   麻黄碱常被用作手术程序的麻醉剂。
3. 3.The patient was given a small dose of marcaine to help them relax during the procedure.
   患者被给予一小剂量的麻黄碱，以帮助他们在手术过程中放松。