(Foreword)

Cold ice can't break the water, and dead wood can meet spring again.

(Text)

"Sure enough, I still have a suitable physics professor, and it seems that my choice has been recognized by everyone." Professor Wu seems to have given up on his ambition to become a professor of fine arts.

I was also relieved.

I looked at the 'blackboard' in front of me, and my heart was mixed.

"That's a shame, so that the art world will also lose such a talented elite." Cui Li's face showed a look of regret.

Cui Li!! Are you finished!! I looked at Cui Li and motioned for him to put an end to his exaggerated compliments and return his focus to discussing the situation at Yiling Pass.

"Cui Li, do you really think I have attainments in art?" At this time, Professor Wu was completely immersed in Cui Li's beautiful words.

"That's !! Professor Wu's paintings resonate with the depths of the soul, and a few seemingly unintentional strokes are deeply shocking. Cui Li exaggerated a little like he was reciting poetry.

"Professor Wu, have you ever thought of any way to attack Yiling Pass?" I hurriedly interrupted the conversation between them.

Let them continue to talk like this, I'm afraid that the background music is about to sound, and the whole large-scale soundtrack poem is recited......

"Cheng Yin, you're right, let's go back to the battle situation in Yiling Pass first. I do have a great idea. Professor Wu finally returned to his usual state.

"What! Professor Wu, have you thought of a countermeasure to attack Yiling Pass? Lin Yun looked at Professor Wu in surprise and asked.

"Well, you can say that, but I still need your reference." Professor Wu turned his gaze back to the 'blackboard'.

"You look at this rectangular Yiling city wall, and this rectangular sword, the two are added together, and there is no doubt that they form a barrier in Yiling Pass, and if you want to attack Yiling Pass, you need to find a way to unlock this barrier on the stone wall." Professor Wu's words are indeed to the point.

The biggest headache for me right now is the towering city walls and the huge sword, but it is very difficult to defeat both at the same time.

"Having said that, how can we deal with that great sword and that towering wall?" Lin Yun asked the question in my mind.

"That'...... The ...... of the sword I ...... the ability We all look at it too...... What you see, thousands of troops...... Ten thousand horses are not ...... in front of them It's just a toy. Hu Zaide's face was full of sorrow.

"You're right, the enemy's walls and swords are very difficult for us, but have you ever heard a story?" Professor Wu looked at Cui Li and asked.

"What's the story?" Sure enough, Cui Li looked at Professor Wu expectantly.

To be honest, now is really not the time to listen to stories, but Professor Wu is already preparing to 'lecture', how can I announce the end of the class in advance... I could only listen to Professor Wu tell the story like Cui Li.

"The story is not very long, once upon a time there was a merchant who sold this weapon in the bazaar, and he heard that 'I have here two good blades, one is a shield that can withstand any weapon, and the other is a spear that no shield can stop.' The merchant triumphantly introduced his blade to the people of the city, but one of them asked, "What if your spear, which cannot stop anything, attacks the shield that can withstand anything?" When the merchant heard this, he was embarrassed and left the bazaar with the shield and spear. Professor Wu's story is much better than those paintings.

And most importantly, the story really gives us a lot of ideas.

"What do you mean, Professor Wu......" Professor Twilight asked.

"I'm sure everyone can imagine what would happen if our huge sword attacked this towering wall." Professor Wu said confidently.

"yes!! Attack the shield with the spear of the other!! That's a clever trick!! Cui Li said in amazement.

"That's a good idea, but we can't control that sword, so how can we let it attack the walls of Yiling Pass? Maybe the sword will hit itself? Lin Yun put forward his own opinion.

"Yes...... yes, this ...... How is this possible? That...... That sword will only ...... will cut the soldiers of our army. Hu Zaide looked at Professor Wu suspiciously.

"It's true that we can't control that sword, but precisely because it will only cut our soldiers, then we only need to let the soldiers stand under the city wall, and the sword attacking our soldiers is equivalent to attacking the city wall of Yiling Pass." Professor Wu's idea is really special.

"That's great!! In this way, the enemy himself can know the power of the sword. Professor Due Jiang actually agreed with Professor Wu's opinion,

"Even if the walls of Nayiling Pass are towering into the sky, I am afraid that it will not be able to withstand the attack of that sword." Cui Li said happily.

"However, the attack of that sword is very fierce, and it may not be so easy for the soldiers to reach the city wall under such an attack." I've always felt that this idea was ingenious, but I didn't think it was very secure.

"That's right, this is bound to cause a lot of soldiers to lose their lives." Lin Yun said worriedly.

"Indeed, that's what I'm worried about, so let's take a look at it and see if there's any better advice." Professor Wu looked at us.

"This is the best countermeasure we can think of now, if it doesn't work, we can carry out crowd tactics, the battlefield is supposed to have people fall, otherwise it is still a war?" Professor Due Jiang appeared to be in favor of Professor Wu's proposal.

"It is true that war will inevitably lose lives, but it is by no means a needless death, this method does have merit, but the lives of soldiers are equally important, if you really want to go, it is better to let me go and take the lead first!! My voice was low.

Jingzhou, it is generally believed that during the Eastern Han Dynasty, Jingzhou originally had seven counties: Nanyang County, Nan County, Jiangxia County, Lingling County, Guiyang County, Wuling County, Changsha County, after the Battle of Chibi, the seven counties of Jingzhou were divided by Liu Bei, Cao Cao, and Sun Quan, Cao Cao occupied the largest Nanyang County in the north of Jingzhou, Sun Quan got Jiangxia County and Nan County, and Liu Bei got four counties in the south of Jingzhou (Changsha, Lingling, Guiyang, and Wuling). Liu Bei's military security was not conducive to development, so he proposed to Sun Quan twice to borrow the southern county of Jingzhou, and Eastern Wu Lusu persuaded Sun Quan to temporarily lend the southern county to Liu Bei, so Liu Bei had five counties of Jingzhou (Nanjun, Changsha, Lingling, Guiyang, and Wuling).

------ Baidu Encyclopedia

(End of chapter)