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。

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.

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然后我会分享那次在台上演奏《比利男孩》的经历。 之后，我也会告诉这些孩子们老师曾对我说过的话：“神并不想知道莎拉会怎么做，他已经知道了。

Then I tell them about a boy who came to school armed with a guitar and the music to “Billy Boy, ” and I give to them my teachers words: “God doesn’t want to see what Sarah can do, He already knows.

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比利和波比都是小男孩。他们是兄弟，两人经常打架。

Billy and Bobby were small boys.they were brothers, and they often had fights with each other.

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