英语语法分析

Communicable diseases are the leading cause of death in Sudan.

传染病是苏丹的主要死亡原因。

Many in the WHO Secretariat were big communicable-disease characters.

世卫组织秘书处中的许多人是传染病领域的知名人士。

Serogroup a has been confirmed by the National Institute of Communicable Diseases (NICD).

血清组a已经国家传染病研究所确认。