“传统医药”常见的英文表达是 “traditional medicine” 。
例如：
Traditional medicine has played an important role in healthcare for centuries.（传统医药在几个世纪的医疗保健中都发挥了重要作用。）
Many people still rely on traditional medicine for treating common ailments.（许多人仍然依赖传统医药来治疗常见疾病。）