"This is a cinnamon branch, which can sweat and dissolve muscles, warm meridians and veins, help yang and qi, dissipate cold and relieve pain, etc. You see, its surface is reddish-brown to brown, with longitudinal ridges, fine wrinkles, and small pimple-like leaf marks, branch marks, bud marks, and punctate skin holes, which are hard and brittle, and easy to break. These have been concocted for several days, and it will be almost a day away. ”

Gu Chengyu was a little strange, the cinnamon branches introduced in the medical books of his previous life were obviously grown in the south, and Jingyuan Mansion should belong to the north, how could he be rich in cinnamon branches?

Li Langzhong pointed to the kind of medicinal herb next to him and then introduced, "This is ephedra, its nature is warm, the taste is pungent, slightly bitter, it has the effect of sweating and dissipating cold, promoting lung asthma, diluting water and reducing swelling, and can treat wind, cold, chest tightness, asthma, cough, feng shui edema, wheezing and other diseases." Next, Li Langzhong introduced several kinds of medicinal materials, all of which are often used. Although Gu Chengyu knows everything, after all, the books are all illustrations, and there is no physical object, and the ancients paid attention to the artistic conception and did not pay attention to realism, so it was more abstract.

"Of course, some medicinal materials can be used together to treat the right disease very effectively, but some medicinal materials cannot be matched with each other, because he has the principle of mutual restraint......" Li Langzhong saw that Gu Chengyu listened very carefully, and he could also ask questions, draw inferences from one another, and teach more and more energetically. In this way, one taught carefully, the other studied seriously, and neither paid attention to the passage of time, until Yao came over to call for dinner, and the two of them stopped unsatisfied.

"Okay, master, the meal is ready, call Xiaobao over for dinner! Don't mess with your babies, they're probably hungry. In fact, Yao had been watching from the side for a while, and it was rare to see Li Langzhong so interested, and she was also happy in her heart, so she didn't come forward to disturb.

"Look at me, I've forgotten the hour, all right, here we are! I see that you are also very interested in medicinal materials, I just taught you, if you forget or don't understand anything, you can also come to me, you can just come in the future, I will teach you at home, what I said today, how much can you remember? Li Langzhong was also on a whim, to see how much Gu Chengyu could remember, in fact, he didn't expect it, Gu Chengyu could remember, after all, he was only a five-year-old baby, and his pharmacological knowledge was very obscure, and there were many similarities, and he had to remember other medicinal materials and principles that were compatible with it. However, even if he didn't remember, as long as he listened carefully, it wouldn't be in vain for his hard work.

"Uncle Li, I've written it down, if I want to ask anything else in the future, can I still come to you?" Gu Chengyu had already carefully studied the illustrations of the medicinal materials about these medicinal materials in the space, and thanks to the skill of not forgetting them, he was already familiar with them, but the medical books did not list in detail what diseases this medicinal material and which medicinal materials could be combined with which medicinal materials, let alone the detailed explanations of the medicinal materials that were compatible with them, and they may all be explained in other medical books and prescriptions. After Li Langzhong's detailed explanation, he now remembers everything.

"What? Do you really remember them all? Don't lie to Uncle Li, a lying child is not a good child. Li Langzhong's face was incredulous, looking at Gu Chengyu's eyes was a little sharp, if he lied and deceived people for the sake of good face, this character would not work.

"I really remember everything, don't you believe I will recite it to you?" Gu Cheng thought that since he wanted to take the imperial examination in the future, with his ability to never forget, it would be impossible to keep a low profile, so it would be better to be high-profile, maybe there would be more opportunities in the future.

"Hmmm! Since you have this confidence, then you can recite it to me, and recite them one by one in the order of the medicinal herbs I just introduced to you. Li Langzhong still refused to believe that someone could really repeat so much of what he just said in such a short period of time.

Gu Chengyu lit the herbs drying in the courtyard, and recited Li Langzhong's words just now, word for word, and added his own understanding and analysis, and what he said was also the Tao.

Li Langzhong was shocked and surprised at first, but the more he listened to it, the more satisfied he became, touching his beard again and again, and nodding his head. "Hmmm! I was still a child, and I liked to show off, but I was really able to recite it, but I was so suspicious of you before, it was me who was wrong, don't take it to heart. Li Langzhong can see that this Gu family's fifth child is not like an ordinary child, sometimes he looks as calm as an adult, and he has some eyes on the world, but he is young and still needs to be honed and honed, so he can't be ignored with ordinary children. Compared with these, what is even more strange about Li Langzhong is that he just taught a lot of pharmacological knowledge, and when he said it, he was interspersed with many medicinal materials that could not be used on weekdays, why could Gu Chengyu memorize it all? Is it true that some people are born with a special talent for certain things? Or can he listen to everything once and remember it? Li Langzhong couldn't help but admire, this kid is really talented.

Gu Chengyu saw that Li Langzhong would apologize to Xiao'er, which was enough to show his good conduct, and he was even more determined in his thoughts.

"Well, you're quite talented in medicinal herbs, if you still want to know, come to me when you're free. Let's go! Go eat first. Li Langzhong suppressed the excitement in his heart and took the lead in entering the dining hall separated from the main house.

Although the Li family's meals did not become sumptuous because of Gu Chengyu's arrival, they could see that they had put their minds into it. There are only three dishes on the table, and they are all coarse porcelain plates, and they are not the Gu family's sea bowls, anyway, the Gu family's sea bowls have a high usage rate, and they still use it for drinking water, eating and loading vegetables.

A plate of cucumbers is emerald green and appetizing; Next to it is a plate of cabbage stew, and a braised tofu, and the staple food is multigrain rice, which is brown rice mixed with some beans. There are even meat dishes, I don't know if it's usually eaten like this, or because he came to make it specially. The Gu family has always been black batter with nest head, and they eat a lot of pasta, and rarely eat dry, let alone brown rice, they have been here for five years, and it is the first time they have seen it.

Originally, Gu Chengyu planned to go back and eat again, but when it came to the meal, Li Langzhong definitely refused, it was not good to go back like this, it seemed that it was too bad to give the master's family, so it was better to wait for the honeysuckle to dry and make up for it. After making up his mind, Gu Chengyu was no longer polite.

"Xiaobao, don't be polite when you arrive at Uncle Li's house, eat quickly! The dishes cooked by your aunt taste good, you can taste them. The Li family also has no rule of eating and sleeping, Li Langzhong said as he picked up the chopsticks and gave Gu Chengyu a chopstick meat dish first.

Gu Chengyu hurriedly thanked him, Yao took advantage of Gu Chengyu's meal to look at him a few times, and saw that he was behaving gently, he didn't pick the meat and vegetable clips when he picked up the vegetables, nor was he picky eater, he didn't chew slowly, he wasn't embarrassed, and he didn't make a big noise, so he turned his eyes away with a smile and happened to glance at Li Langzhong. Yao's gaze, Gu Chengyu had already felt it, and then Yao's was obviously much more enthusiastic. Gu Chengyu himself has a sweet mouth, praising Yao's cooking dishes for being delicious, during which he was coquettish and cute, and his witty words were full of witty words, which coaxed Yao's heart to bloom, and he gave Gu Chengyu vegetables vigorously.

The meal ended in the laughter of the three people, Gu Chengyu was full of food and drink, and he was ready to go back, today's sense of existence has been brushed up to now, and the results have made him very satisfied, but everything is too much.