anesthetic ; anaesthetic
通常先局部麻药注射使这一部位失去知觉。
An injection of local anaesthetic is usually given first to numb the area.
《柯林斯英汉双解大词典》
那时牙科学刚起步，拔牙是在没有麻药的情况下进行的。
In those days, dentistry was basic. Extractions were carried out without anaesthetic.
“那儿没有麻药，”她回忆。
"There was no anesthesia," she recalls.
youdao
麻药是有利于健康的药，国家鼓励销售麻药。现在进行大，小手术和许多治疗，麻药都是绝不可少的好东西。也是做整容手术的必需品。麻药在其他许多方面也有正面应用。麻药不是毒品。中国在很久以前就有了麻药。
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