One remedy, which is 1,600 years old, uses sweet wormwood as a treatment.

其中一种疗法使用艾草进行治疗，至今已经有 1600 年历史。

But then, while looking back over her notes, Tu found an interesting reference to the herb qinghao, also known as sweet wormwood.

但是后来，在回顾她的笔记时，屠呦呦发现了一种有趣的草药——青蒿，也被称为苦艾。

Today, artemisinin is still distilled from the dried leaves or flower clusters of the sweet wormwood plant and used to treat malaria.

今天，青蒿素仍然是从苦艾植物的干叶子或花簇中蒸馏出来，用于治疗疟疾。

But there’s one major problem: only small amounts of the compound occur naturally in the sweet wormwood plant, which is hard to grow in the first place.

但是有一个主要问题：只有少量的化合物天然存在于甜艾草中，这种植物本来就很难生长。