来自《耶鲁大学开放课程：1600年后西方社会的流行病 第7集 第7集》
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after a period of time,过了一段时间以后 -
had a challenge in vaccination他又冒险给孩子接种 -
with live smallpox virus.活性天花病毒 -
And happily the experiment幸运的是 -
was a great success,实验十分成功 -
and Edward Phipps demonstrated that he was immune,爱德华·菲普斯证明 通过这种方法 -
by this procedure, to smallpox.他对天花病产生了免疫力 -
And, so, soon thereafter,于是 没过多久 -
Edward Jenner--爱德华·詹纳 -
whatever one thinks, by modern terms,不管现在的人们对于这个实验是否 -
of the medical ethics of that particular experiment--复合人道伦常作何想法 -
in 1798 Edward Jenner wrote他在1798年写了