Jhon Snow was so well-known a physician in London in the 19th century as to help ordinary peopleexposed to cholera which was the deadly disease of its day.请问这个句子中的exposed是什么用法

Jhon Snow was so well-known a physician in London in the 19th century as to help ordinary peopleexposed to cholera which was the deadly disease of its day.请问这个句子中的exposed是什么用法
Jhon Snow was so well-known a physician in London in the 19th century as to help ordinary people
exposed to cholera which was the deadly disease of its day.请问这个句子中的exposed是什么用法

Jhon Snow was so well-known a physician in London in the 19th century as to help ordinary peopleexposed to cholera which was the deadly disease of its day.请问这个句子中的exposed是什么用法
Jhon Snow was so well-known a physician in London in the 19th century as to help ordinary people
翻译：John Snow 因为帮助普通老百姓而在19世纪的伦敦成为一个闻名于世的医生
解析：句子主干可以看成是 so……as……因为……而如此……
John snow was so ……as……John snow 因为什么而什么
exposed to cholera which was the deadly disease of its day.
这个是完整的句子么?前面还有一些的把,根据前面的东西才好划分成分,楼主不妨整句说一下；
这里的话最大可能是前面有个名词是被修饰的,该句省略了（which/that was）,变成一个由expose的过去分词引导的短语做定语,修饰前面的成分
【楼主参考下~希望对你有帮助~】

be exposed to 原来的意思是 暴露在。。。表面
在此处可引申为 遭受。。。 的意思

exposed 过去分词做定语修饰people，表示“遭受霍乱的平民百姓”

exposed是过去分词，它引导的短语表示被动意义，用作people的后置定语、