I've done whatever I want

The road of life is like this. There are potholes everywhere. If you are not careful, you will fall down hard and get bruised and bruised.

Although the winter sun was shining brightly that day, the temperature was very low and the cold wind was strong. It was like countless pairs of small hands shaking the bare branches on both sides of the campus avenue, making a rustling sound.

"Hey, Xin Tong, why are you wandering around the campus alone?"

Hearing a familiar voice behind him, Xin Tong turned around and saw that it was his roommate He Weijia.

"Jiajia, the campus scenery is nice in winter, come out for a walk!"

Jiajia pedaled her bicycle hard and caught up: "Brother Xing, I have some good news for you. The paper I submitted to IEEE electron device letters has been published."

"What thesis is?" Xin Tong asked curiously while pedaling his bicycle.

"It's a paper about ReRAM memristor!" He Weijia said proudly.

Xin Tong has a certain understanding of ReRAM memristor. The storage function is realized through the conductive filaments in the chip.

The structure of the memristor is very delicate. A layer of Metal Oxide is deposited through a thin film between two electrodes as a conductive filament. When a positive voltage is applied to the top electrode, the conductive filament is turned on. When a negative voltage is applied to the bottom These conductive filaments break when connected to an external electrode, and in memory, the disconnection and conduction of resistance are represented as 0s and 1s.

"If ReRAM memristor adopts a 3D integrated structure, it will have an overwhelming advantage in storage density performance compared with traditional memory chips." He Weijia added.

"Are you studying the structure of ReRAM memristor?" Xin Tong asked.

Since Professor Cai Shaotang of the University of California, Berkeley published the paper "Memristor: The Missing Circuit Component" in 1971, scientists have never stopped exploring memristor.

In 2008, Hewlett-Packard Company made the first nano-memristor device, setting off a research boom in memristors in the scientific community.

"Yes!" He Weijia nodded.

"Good for you!"

"Xin Tong, with the advent of the era of intelligent connectivity of all things, emerging application scenarios such as artificial intelligence and smart cars will put forward higher performance requirements for storage. I think ReRAM memristors will definitely become popular." He Weijia is full of enthusiasm for his research direction. gained confidence.

"Come on! I hope your research project will get out of the laboratory soon!" Xin Tong rode his bicycle next to He Weijia, stretched out his hand and patted his shoulder.

"Don't worry, it will definitely happen."

It was a bright sunny afternoon. The leaves of the big trees on both sides of the road in Tsinghua University Garden had fallen off, and the warm sunlight was shining on them without any obstruction.

Without the struggle for business interests, college time is really wonderful.

But beautiful things move very quickly. In a blink of an eye, spring is here when flowers are blooming, and when you think about it again, it’s summer when everything is growing.

When Xin Tong realized that time had passed, the campus radio station was playing the famous song "With You in My Life" by Shuimu Tsinghua. The song was a bit sad, and the mood of farewell permeated the entire Tsinghua campus. It was the annual graduation time again. season.

"Lele, where did you buy this dress? You look very handsome in this dress, and you have a [-]% chance of turning heads." On the weekend morning, He Weijia looked at Tian Tianle with curious eyes. .

"Jiajia, wouldn't I be handsome if I didn't wear this outfit?"

"Without these clothes, you are slightly handsome, but with these clothes, you are handsome!" He Weijia said with a smile.

"Jiajia, today is the day when Senior Gao Wu goes to the University of Georgia to study for a postdoctoral degree. Have you forgotten?" Tian Tianle reminded.

"Lele, you are so fancy. I thought you were going out to pick up girls, but it turns out you are going to send your senior off to school! It seems I should also find something decent to wear." He Weijia said while rummaging through the boxes.

"Hurry up, we'll call a taxi and leave soon!" Tian Tianle urged.

"Senior Gao is gone, and we will never be able to eat the Hangzhou food cooked by my sister-in-law again!" He Weijia grabbed a piece of clothing and put it on, sighing with emotion.

"Xin Tong, Senior Gao Wu is our fellow student. His hometown is Jiaxing. Do you want to go with us to see him off?" Tian Tianle suddenly turned around and said to Xin Tong.

"Yes, you are fellow villagers!" He Weijia responded.Although my relationship with Gao Wu was very shallow, as a junior and a fellow student, it was only reasonable to see him off.

It's just that he doesn't want to disturb He Silian. Some things are more beautiful if they are buried deep in his heart.

do not!He Silian!

"Xin Tong, you should see off He Silian. She has gone to the United States. You will never have the chance to meet again in this life!" A voice persuaded above him.

"Okay!" Xin Tong was silent for a moment and nodded.

On that morning when the sun was shining brightly and the green trees were growing wildly, the three of them walked out of the school gate, hailed a taxi and headed straight to the international airport.

When they hurried to the airport, Xin Tong looked up and saw He Silian.

Since He Silian left Ming Yueguang in January 2003, he has never seen her again. Seven and a half years have passed, and she is still as beautiful as ever. The years have not left any traces on her forehead. She is wearing a The white skirt is as spotless as the lotus flowers in the lotus pond.

"Xin Tong!" He Silian couldn't believe her eyes, and her delicate body trembled slightly.

"He Silian!" Xin Tong smiled faintly and nodded.

"Brother, it turns out you know each other?" He Weijia was stunned.

"Yes, we used to work in Shanghai Mingyueguang." Xin Tong pretended to be calm.

"Oh!" He Weijia woke up from a dream.

"Fellow, it's such a pity. If I had known that you and He Silian knew each other, you should have come to my house with Lele and Jiajia on the weekends! I received an invitation from the Georgia Institute of Technology in the United States and will leave to study there today. Postdoc, when you go to the United States in the future, you must remember to find me!" Gao Wu patted Xin Tong on the shoulder.

Xin Tong nodded blankly.

After Gao Wu finished speaking, he put his arms around He Silian's slim waist and walked towards the gate where the international departure was taking place.

"Senior Gao, have a nice trip!" Tian Tianle waved his hand.

"Senior Gao, wait for me in the United States. I will go to the United States to find you after I graduate with my master's degree!" He Weijia also waved his hand.

Xin Tong stared at He Silian's retreating back, feeling very uncomfortable in his heart.

That beautiful figure was about to be submerged in the crowd. He Silian suddenly looked back, and Xin Tong felt as if she was illuminated by a strong light.

The scene from seven years ago appeared in his mind. In the ward, He Silian gave him her first kiss in a panic.

A sweet feeling came to his heart. Xin Tong reached out and touched his lips, with an imperceptible smile on his face.

Soon, the beautiful figure disappeared at the end of the Gate.

China and the United States are separated by the vast Pacific Ocean. This separation may last a lifetime!
Xin Tong suddenly felt his eyes sore, and tears flowed down quietly.

"Brother, what's wrong with you?" He Weijia, who was standing beside him, looked at Xin Tong curiously.

"I'm fine! It's a little sad to see the parting scene!" Xin Tong quickly wiped the tears on his face with his hands.

"Xin Tong, you are really good at acting. It would be a waste of talent not to major in acting!" He Weijia shook his head.

"Fellow fellow, did anything happen when you were working at Shanghai Mingyueguang?" Tian Tianle asked with a smile.

"Lele, don't think too much!" Xin Tong shook his head.

"You are so handsome and she is so beautiful. It is such a pity that nothing happened to you in Shanghai! If I were you, I would have captured her long ago!" He Weijia sighed.