We can have an aspirin tablet; we don't have to chew on willow bark to get that salicin that's going to give us that pain relief that we need.

我们可以服用一片阿司匹林; 我们不需要咀嚼柳树皮来获得我们需要缓解疼痛。

35 years later, in 1826, a French researcher isolated the active ingredient in willow bark: a yellowish crystal that was named salicin a couple of years later.

35 1826 ，一位法国研究人员分离出柳树皮中活性成分：一种黄色晶体，几被命名为酸。

It took nearly another 70 years for a German pharmacist, Johann Buchner, to finally identify and purify the substance that made all this possible, a compound called salicin.

德国药剂师约翰·布赫纳 (Johann Buchner) 又花了将近 70 时间，才最终鉴定并提纯了使这一切成为可能物质，即一种名为化合物。