英语语法分析

On the 20th of that month, Dr. Welch examined a sick boy, Billy, and knew he had diphtheria, a deadly infectious disease mainly affecting children.

在那个月的20号，韦尔奇博士检查了一个生病的男孩比利，得知他患了白喉，一种主要影响儿童的致命传染性疾病。

I first visited Moscow in 1994, during an outbreak of diphtheria in the Russian Federation.

1994年当俄罗斯联邦暴发白喉期间我第一次访问莫斯科。

I'm here to look at her throat on the chance that she might have diphtheria and possibly die of it.

我来是看看她的嗓子，也许她患了白喉，而且很可能会死于这种病。