"Mathematics? What kind of bird thing, I don't know!" said the strong pirate viciously.

Chen Changan held the extinction storm and showed a pleasant smile:

"No, I'll teach you!"

"I'm illiterate!"

The strong pirate screamed proudly, held a machete and rushed towards Chen Changan, who looked handsome and weak, and said angrily:

"I can beat ten young faces like you, who are so savvy!"

Chen Changan's mouth raised slightly, and he didn't take the strong pirate seriously. Instead, he almost laughed because of the strong pirate saying "I'm illiterate."

Bang!

A gunshot!

The shooter was Zhang Sanlun. The bullets of the ashes revolver hit the chest of the strong pirate in an instant. The high-speed moving bullets should have penetrated the flesh and blood body, but they failed to sink into the sand on his chest.

Click!

Failed to penetrate enemy armor!

The warhead twists and deforms, and then slowly falls to the deck after losing kinetic energy.

Zhang Sanlun looked closely and found that layers of rock-like hard skin were condensed from the strong pirate's body. It was the spell obtained by the captain of the engineering team, Hu Buye, to worship the statue of the earth, the stone skin technique, which made his body resist the impact of the bullet.

"That's it!"

The strong pirate waved his machete, rushed to Chen Changan in three steps at a time, and then cut off the little white face with one knife.

Several pirates with the same strong figure followed closely behind, and they all aimed at the target of the attack Chen Changan and said angrily:

"Be handsome and die quickly!"

Chen Changan chuckled softly, slowly stretched out his hand, and a trace of spiritual blood gathered in his palms, imitating the spiritual power operation technique of the stone skin technique, causing the skin on his palms to gradually harden, creating a texture similar to rocks.

clang!

The strong pirate swung his machete and his attack speed was as fast as the wind, but Chen Changan grabbed the blade with his semi-stone palm.

"Oh my God, empty-handed like a blade!"

The pirates behind him were immediately frightened and were afraid to launch an offensive.

"Is the boss so strong?" Zhang Sanlun shot with a gun, killing all the pirates behind the strong man.

If you feel the deepest, it must be a strong pirate who uses a knife. No matter how hard he tries, he cannot get the machete out of the shackles of the little white face in front of him.

"Damn little white face, damn little white face, damn little white face!"

The strong pirate glared and stared at the handsome man in front of him, a great sense of frustration arose from his heart:

"Why, he is not only handsomer than me, but also educated, and even many times stronger than me!"

The strong pirate was depressed, but he felt a powerful force in his hand that could not resist it. It was just a flash of magical skills, and the machete in his hand was seized by Chen Changan.

"Help, brothers, help!" The strong pirate realized the strength of the young man in front of him, and hurriedly asked for help from the brothers behind him, but found that the other brothers were all dead in the hands of bullets, so he hurriedly shouted to the pirate ship:

"Boss, help me!"

The pirate captain looked solemn and led dozens of pirates who had just been stopped by him, bowed to Chen Changan:

"God of Chang'an, we have no idea about Mount Tai. All the brothers who have entered your field will be left to you for disposal. How about it?"

"You guys wait here for a while, I have something to teach this big brother."

The pirate captain seemed to have mastered the essence of the "cultivation spirit", and turned the angle between his waist and legs into ninety degrees, and said humbly:

"You can give me the order!"

The strong pirate looked in disbelief, and could not believe that the powerful captain of the past was now so humble that he had made the biggest roar ever:

"Boss~~~"

The pirate captain still kept bowing 90 degrees and cursed in his heart:

"This is a peerless murderous man who destroyed Ansu's fleet!"

In the eyes of the deep sea countries, the destruction of the millions of troops in the Ansu Kingdom was caused by Chen Changan!

Faced with such a peerless fierce man, the pirate captain is only a level 4 extraordinary species. How can he have the courage to offend a giant with evil things and nuclear weapons?

The pirate captain made a summary in his heart:

It’s not embarrassing to admit defeat!

Chen Changan glanced at the pirate captain, threw the machete behind him casually, and said with interest:

"Big brother, you just said you were illiterate?"

The strong pirate retreated half a step in fear and said tremblingly:

“Yes…ah~”

Chen Changan chuckled and said:

"Do you know? In another world, there is a great government and country. They are obviously poor but insist on literacy for decades. Children under the age of eighteen can learn advanced knowledge by paying a little tuition and miscellaneous fees."

Chen Changan remembered the "Dividelines for Destruction" that the Sky City regarded as a treasure. It was just a biological knowledge such as "biodegradation" and "food chain" that high school students could understand, and continued:

"I am a math teacher and I like to teach others about auxiliary lines. If you can learn auxiliary lines, then this axe won't cut off your skull."

The strong pirate looked at Chen Changan with gentle eyes, and always felt that he wanted to use his skull as a bowl, and said in panic:

"Study! Can't I learn it yet?"

Chen Changan smiled and took out a wooden board, drew a circle and a triangle on it with gravel, and finally transformed the overlapping parts of the two patterns into shadows, and said with a smile:

"This is a free score question, a must-take in the college entrance examination this year! Do you know how to find its shadow area?"

The strong pirate was heartbroken and almost calculated the shadow area in his heart, but Chen Changan smiled in his ear and said:

"I can't count it, I'll just scratch it on you."

Chen Changan's smile was very gentle, but in the eyes of the strong pirate, he was as terrifying as a devil, and he hurriedly said:

"Teacher, teach me."

The words "teacher" happened to scratch Chen Changan's itchy place and said with a smile:

"There is an auxiliary line here, and that corner must be connected to this line. With these two auxiliary lines... Oh, by the way, I forgot that you are illiterate, I will teach you what area is..."

The strong pirate wanders in the ocean of knowledge, sucking the rain and dew of knowledge. He would rather not eat, drink water, or sleep than calculate math problems. He loves to study, and learning makes him happy.

It took two hours to teach the strong pirate to master how to calculate the area of ​​a circle, calculate the area of ​​a triangle, and the area of ​​a psychological shadow... Oh no, the area of ​​a shadow.

He looked at Chen Changan carefully and tentatively:

"Teacher, I learned it."

Chen Changan put down the axe in his hand and smiled:

"Well, then you can go back alive."

Suddenly, a wave of cheers broke out on the pirate ship.

This axe-assisted teaching is not just a cat-and-mouse entertainment, but also a small experiment by Chen Changan:

The teaching results show that even the illiterate world in the deep sea world has an IQ that is no less than that of humans on earth. The intelligence levels of the two are comparable, but it is because the existence of gods is different from that of science (magic) and science (law) trees that completely different social structures are derived.

As early as the appearance of Yamamoto Ao, he realized something that as humans separated from one world, there was no reproductive isolation between them!

High school students all know that any species that reproduces for tens of thousands of years may be reproductive and isolated from their former counterparts, not to mention that humans on Earth and deep-sea humans are not even species in the same world!

Even if ancient humans were summoned to the deep sea world, they should not be able to leave their descendants... unless humans in the two worlds originated from the beginning and maintained uninterrupted genes, or bloodline communication!

Chen Changan felt that he had grasped the key to uncover the many mysteries of the deep-sea humans - and the name of this key was called biology. By tracing the bloodline of deep-sea humans (genetic research), he found the origin and history of deep-sea humans.

Finally, break through the fog in the deep sea human history and find the final truth!

"Teacher, can I go back?"

The strong man looked up at Chen Changan with a tall two meters tall, and asked carefully.

Chen Changan said with a smile:

"Of course, I just want to teach you some knowledge about auxiliary lines."

The strong man was happy when he heard this, and immediately jumped back to the pirate ship. He breathed a sigh of relief and said in his mouth:

"It's all about useless things."

Chen Changan glanced at him:

"Don't say that to yourself!"

The pirate captain immediately blew the strong pirate's head and asked with a flattering smile:

"Brothers are ignorant. I hope the great god of Chang'an, can we leave?"

Chen Changan raised his two fingers and said slowly without any rush:

"I have two requests, I hope you must agree to me."
To be continued...