"My dear granddaughter is really amazing. She can even come up with such a method."
Although Mrs. Wu's eyesight was blurry due to her old age, she was still looking at the water quietly, unwilling to take her eyes away, and kept murmuring.
Zhang and Wu had smiles on their faces, and looked proud.
"May I ask how you came up with this?"
While warming his arms, Li Xiang looked at the little girl in front of him curiously.
Chen Xinli's eyes turned: "Sir, do you know that we are now in a cave?"
Li Xiang asked in confusion, "So what?"
Chen Xinli smiled and pointed at the cave entrance and said, "Sir, please take a closer look. Isn't the water flowing on the ground at the cave entrance much cleaner than the water in other places?"
Li Xiang opened his eyes wide and looked, only to see that the ground at the entrance of the cave was covered with sand and gravel.
There were some sparse plants such as thatch, pepper grass, purslane, and cudweed growing between the sand and gravel, and the rest of the exposed areas were covered with black charcoal fragments.
Countless shallow streams flow through it, but the water is not turbid.
When he entered the cave, he was in such a hurry that he didn't notice it at all.
I didn't expect that the little girl saw it all.
Seeing that Li Xiang had carefully observed it, Chen Xinli said:
"We waded through the water all the way here, and because there were no plants to block it, the mud and sand were washed out by the rain, and the water became turbid.
But there is a lot of vegetation growing on the land at the entrance of our cave, as well as a lot of broken sand and charcoal.
Li Xiang paused. "You mean, it's because of the vegetation and the charcoal?"
Chen Xinli smiled and said, “Mr. Li is right.
I've heard doctors say before that charcoal can absorb dirt, and with the obstruction of grass and gravel, the water flow here can't wash away the mud and sand.
I thought, since silt and vegetation can filter water, we can also make similar tools to filter water, so I tried using these things.
Li Xiang nodded and said to Shen Fugui, "Your daughter is really smart!"
Shen Fugui quickly replied, "It's just a child's joke."
Li Xiang didn't care about the other party's answer, but inadvertently recalled the culvert in Qianniu Village.
I wondered in my heart: Could it be that this little girl also came up with this idea?
After thinking about it, he shook his head and felt that he must be possessed by a demon.
I looked at the little girl again and thought: She is only eight or nine years old, how is it possible?
After listening to Chen Xinli and Li Xiang's discussion, everyone was silent for a long time.
Chen Xinli stared at her family again and said, “It rained heavily, and the water collected in the wild is not clean. There may be insects in it that we can’t see.
Remember, you must boil it before drinking it, otherwise the worms will get stuck in your stomach and it will be very uncomfortable."
Wu Yuehua and Zhang Fangju seemed to recall a terrible scene.
I got goosebumps all over my body.
In fact, not long before they left, they saw with their own eyes that Zhao Xiaobao, the head of the village, had defecated all over the floor with crawling insects.
That scene was creepy.
She immediately replied to her daughter/niece, "Don't worry, Ali, we will definitely boil water before cooking."
After they finished speaking, they looked at the children worriedly, "Did you remember what Ah Li said?"
The brothers of the Shen family immediately nodded solemnly.
Shen Yulin remembered that this was not the first time his sister had talked about this.
At that time, he heard her and the young doctor mention something about "bacteria", but he didn't pay attention.
Zhang Xiaodi looked at Ali with admiration and expressed his feelings sincerely.
"Sister Ali is so smart. I am so dumb. I need to learn more from her."
After the brothers of the Shen family responded, they thought their sister's operation was very interesting. Now that they saw that their sister had more followers, they felt very proud.
"Well, that's their sister! They have to protect their sister."
So Shen Yushan and Shen Yulin ran out of the cave again and scooped water with bowls.
Shen Jinshan and Zhang Xiaodi were not to be outdone and ran out to help.
For a moment, everyone in the Shen family in the cave became busy again.
Old Mrs. Wu followed the kids and when she saw they were down below, she hurried to the other side to dig up some wild vegetables for later use.
Jiang Yu leaned against the cave wall next to the fire. He had just finished drinking ginger soup and taking medicine, and felt much better.
After hearing what the little girl said, he tried hard to see clearly what she had made, and more importantly, to see what she looked like.
I thought to myself, "She must have been an extremely intelligent, beautiful, gentle little girl, loved by her family."
However, no matter how hard he tried, there was always a gray haze in front of him.
The young man lowered his eyes somewhat sadly.
I could only imagine it secretly. After thinking for a long time, the corners of my mouth rose slightly, as if I thought of something happy.
But soon, the boy seemed to think of something bad and immediately regained his composure.
Meng Yun stared at the filtration device intently, and he began to understand why his father was so persistent in letting him study medicine.
Back then, if my uncle and his companions had not accidentally drunk the muddy water from the swamp during their march, would they have not gotten worms in their stomachs?
Meng Yun was heartbroken and had a sad face.
Looking at Chen Xinli again, he opened his mouth and was about to ask if it was because of 'bacteria'.
But the little girl nodded at him.
It turned out that what she had told him at the beginning about 'bacteria' was actually true.
The young man suddenly felt a lot of melancholy in his heart.
He regretted why he had not understood these principles earlier.
Back then, my uncle led the army to resist the attack of the Southern Barbarians, but because of the betrayal of a spy, the entire army was surrounded.
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