Well, first of all, they feed us and they also give us the oxygen we breathe, but plants are also the source of important, biologically active ingredients that we should be studying very carefully, because human societies over the millennia, they have developed important knowledge, cultural traditions, and important plant-based medicinal resources.
首先，它们养活了我们 它们也提供我们呼吸的氧气 植物同时也提供 很多重要的，具有生物活性的成分 因此值得我们仔细研究 因为人类社会经过几千年 已经掌握了许多重要的知识 发展出了不同的文化传统 并获得了重要的药用植物资源