The long summer evening smells of hot bracken, cut grass and meadowsweet.

漫长的夏夜弥漫着热蕨菜、割过的青草和绣线菊的香味。

A for acetyl, and spir for meadowsweet, whose botanical name is Spiraea ulmaria.

A 代表乙酰基，spir 代表绣线菊，学名称是 Spiraea ulmaria。

By then, doctors were routinely using willow bark and other salicin-rich plants, like the herb meadowsweet, to ease pain, fever, and inflammation.

那时，经常使用柳树皮和他富含水杨苷的，如草本绣线菊，来缓解疼痛、发烧和炎症。

Aspirin, for example, was derived in the 19th century from salicylic acid, a long-time remedy for pains and fever found in plants like willow and meadowsweet.

比如，阿司匹林是19世纪从水杨酸提取出来的，长期以来这种药被用来治愈疼痛和发烧，是在像柳树和绣线菊属这样的中提取出来的。