In the eyes of countless students, Lu Zhou shook his head and simply announced the end of the lecture.

Then, he did not stop for a moment, turned and left the classroom.

However, Lu Zhou had just walked out of the classroom not far, and a voice was chased from behind.

"Please wait, Professor Lu!"

When I heard the familiar Mandarin, Lu Zhou stopped and looked back. I saw a young lady who could play seven or eight points and chased it out of the classroom.

Looking at the girl who chased him, he asked: "Are you?"

Taking a few breaths, the girl stretched out her index finger and licked some messy bangs, revealing a smile.

"My name is Hu Ying... I am a sophomore at Humboldt University!"

Lu Zhou nodded. "Hello Hu Ying, do you have anything?"

"A little thing," the eyes turned. Hu Ying did not directly talk about the business, but said with a smile. "That... Professor Lu is too vocal, can I call you Lushen?"

Rinse mouth?

Lu Zhou read it a few times in his heart, how to think how to feel smooth.

But he doesn't care much about how others call him.

The name is just a symbol. The three animals in 201 are called elbows, hooves, and elbows. They have been screaming for so many years.

So, Lu Zhou nodded, and the cloud was light and windy: "Okay, I have no opinion."

Hu Ying grinned and smiled and said: "Lar god, look at what I call you Lu Shen, can you tell me how to be as good as you?"

It turned out to be a problem in learning.

Lu Zhou smiled, and Yan Yue said: "What is your major?"

Hu Ying immediately said: "Applied mathematics, as well as international trade!"

Double Degree?

Lu Zhou's eyebrows picked up.

He doesn't understand much about international trade, but applied mathematics is his old business.

“Is there paper and pen?”

Is this going to leave a phone number for yourself?

"There are some," He heard this sentence, Hu Ying's eyes suddenly brightened, and immediately turned out the small book and the ballpoint pen from the bag and handed it over, while laughing and said, "Let's ask for more advice from Lu Shen in the future." Just!"

"I can't talk about it, but I can teach you a little bit about applying mathematics."

Picking up the paper and pen from her hand, Lu Zhou was no nonsense, and wrote it on the manuscript.

Time passes by one second.

Seeing that Lu Zhou had turned a page, Hu Ying’s eyes were somewhat suspicious.

Just when she thought about what kind of social platform account could not finish a single page, Lu Zhou stopped the pen in her hand and returned it to her with a small notebook.

"This is a book list. The book above was turned over at the Humboldt University Library when I was free. It is still very helpful for the study of applied mathematics."

Hu Ying:? ? ?

Seeing that she was not talking for a long time there, Lu Zhou thought she was caught thinking and nodded with satisfaction.

"The rest of you think about it, there is no skill other than diligence."

"I can help you, and that's all."

After all, he did not say anything, leaving Hu Ying, who had not said a word, in the same place, turned and walked away.

When I got to the school gate, Lu Zhoushun entered the supermarket and bought some stationery and envelopes.

In order to prevent himself from forgetting because he was too busy, he decided to take the free time in the afternoon and write the letter that promised the principal.

I bought something and walked out of the supermarket with a plastic bag. When Lu Zhou was ready to take the bus back to the hotel, I suddenly saw the girl who had just stopped him catching up.

"Wait, wait a minute..."

Stopped and looked at Hu Ying, who was holding his knees and panting, and Lu Zhou squatted slightly.

"Is there anything else?"

"There is one more thing, I forgot to give you."

"……what?"

"letter!"

A letter was pulled from the bag, and Hu Ying smacked the letter into the hands of Lu Zhou.

After receiving this letter, Lu Zhou looked at her in confusion.

Always felt……

Her eyes seem to have some resentment?

But after thinking for a long time, he couldn't think of his connection with him, so he put this thing aside.

Turning the envelope to the front, Lu Zhou simply swept his eyes.

When he saw the address of the letter, he could not help but squat.

Embassy in Germany?

The letter was opened and Lu Zhou looked down the first line.

[... Dear Professor Lu Zhou, I am Hu Mingde, Ambassador to Germany. On your participation in the Hoffman Medal, I would like to express my congratulations to the German Embassy in Germany and all the German diplomats on their outstanding achievements...]

Crossing the body part of the diplomatic rhetoric, Lu Zhou looked directly at the last line.

[...I am very interested in your deeds and my wife, and I am very grateful for your achievements in mathematics, theoretical physics, and chemistry. I don't know if I can have dinner with you. 】

[Hu Mingde, Ambassador to Germany]

Closing the letter, Lu Zhou looked at Hu Ying with suspicion.

There seems to be nothing wrong with this letter, and probably no one will be joking about this kind of casual questioning.

However, he still can't understand.

Why is this personal letter written by the ambassador in the hands of one of her students?

Did not hide this problem in my heart, Lu Zhou directly asked.

After asking about it, Lu Zhou knew that the identity of Miss Hu was not just a student of Humboldt University.

In addition to serving as an office assistant at the embassy, ​​she is also the president of the Chinese University of Hong Kong Student Association in Humboldt, and the Director-General of the German University Student Union in Berlin...

Of course, these are secondary.

The main thing is that she has a veteran who is a diplomat...

......

Anyway, the ambassador has a request, this face still has to be given.

After leaving the invitation, Lu Zhou asked Miss Hu, who still had a bit of resentment in her eyes, to tell the ambassador for herself, saying that she was willing to go to the appointment and set the dinner time tonight.

He has other arrangements tomorrow, and may not be in Berlin for a while. It is better to solve these things as soon as possible.

Back in the hotel, Lu Zhou temporarily put the invitation on the side, took out the letter paper and envelope that had just been bought from the supermarket, and sat at the table to start thinking about the letter that the principal asked.

When he promised this thing, he still didn't think it was difficult to write this letter. However, when he really started writing, he began to make some mistakes.

Think about it too. When I first started studying undergraduate, my politics has been walking around the passing line. This kind of written letter to the relevant departments has never been seen before.

I tried to write a few lines, and he found that he finally wrote and wrote, and it became a discussion article.

Shaking his head, Lu Zhou leaned back on the chair with some headache.

"I knew that it was so troublesome, I just signed a name directly on the white paper and gave it to the principal."

This is a good idea, but he certainly can't do it.

After all, as a disciplined scholar, he must be responsible for every sentence he has said.

After trying a few times, Lu Zhou finally decided to give up this lame imitation, throw the paper into a ball and throw it back into a new piece of white paper.

As a scholar, it is still true. What is said to be good.

Reimagined, he put a pen on the paper and re-written a line of headlines.

"On the application prospects of computational science in the frontier research field and the general trend of the future development of chemistry and materials science"