英语语法分析

Dapsone is the first choice for its therapy.

氨苯砜是治疗的首选药物。

For thosewith negative smears, dapsone and rifampin for one year is the standard of carein the United States.

如果是阴性，服用氨苯砜与利福平1年是标准疗法。

In the 1960s, M. leprae started to develop resistance to dapsone, the world’s only known anti-leprosy drug at that time.

在1960年代，麻风杆菌开始对世界上当时唯一已知的抗麻风药物氨苯砜形成抗药性。