Botanists know a lot about which sorts of compounds have what roles, so classifying constituent chemicals in this way was not too hard.
Botanists know a lot about which sorts of compounds have what roles, so classifying constituent chemicals in this way was not too hard.
植物学家对哪些化合物有哪些作用都了如指掌，因此这样对化学物质进行分类并不太难。