After Yan Jiecheng and his wife left, Li Yuan looked at the photos for a moment and put them away.
You can miss it, but don't indulge in it.
His time is not enough, and he still has a lot of tasks to complete.
Although there is a drug manual, he also specialized in pharmacy in the Second Medical College. In addition, he drew lots of textbooks from previous lives, including valuable experimental textbooks for the present.
However, Li Yuan wants to transform theory into practice, especially to achieve mass production. There is not a little to learn.
He doesn't need to be proficient in everything, but he needs to be familiar with each of them