英语语法分析

However, most of the provings were done between 100 and 200 years ago, when medical science was in its infancy.

然而，大部分的验证都是在100到200年前做的，当时医学科学尚处于婴儿期。

The book does not indicate when or how the original "provings" were done or who reported most of the specific findings.

这本书没有说明这些原始的验证是什么时候做的、如何做的、以及谁报告了这些详细的发现。

Such "provings" led him to conclude that belladonna, for example, could be used to treat sore throats because it caused throat constriction in healthy subjects.

这些“验证”导致他得出结论，例如颠茄能够用来治疗喉咙痛因为颠茄导致健康人喉咙发紧。