"Is this student here to observe?"

"So how is this problem to be understood ......" In the spacious and open staircase classroom, the fluid mechanics teacher is talking eloquently at the podium, with the PowerPoint projected on the big screen behind him.

This is the good thing about night classes, when projecting without blocking the curtains, the window is dark. However, the bright light of the classroom still makes the projected image a little white.

It's after 9:00 p.m., the second period of the night shift.

Wu Lin sat in the first row of the classroom, his eyes carefully looking at the projection, but his hand hidden under the table holding a cell phone, the teacher said every word he heard clearly, but in fact, did not even go to his head.

It's not that I don't want to go, it's just hard to concentrate.

Wu Lin likes to chat with Ye Wang on WeChat, but only during non-school hours.

First of all, he always sits in the first row, and it's easy for teachers to catch him with his head down playing with his cell phone.

Secondly, you can't play with your cell phone no matter how many rows you sit in!

But Wang's classroom beliefs clearly did not include this discipline.

Ye Wang:?

Ye Wang: Where is he?

It's only been a minute since he responded on his end, and Wang is in a hurry again.

Wu Lin heart tired, when the teacher is not paying attention, quickly lowered his head and knocked on the word: class is prohibited to send microblogging!

Ye Wang: Boring.

Wu Lin: If you are bored, listen carefully to the class!

Ye Wang: Not a fan.

Wu Lin: "......"

It's amazing that they don't flunk every year at the end of the semester, and they all fly through it at low altitude, it's so unscientific.

For Ye Wang, Wu Lin has given up on the naive idea of making progress together: play games, you've got a bunch of them on your phone.

Ye Wang: No sound effects, no energy.

...... Wu Lin wanted to hit someone. Not only because Ye Wang is a punching bag, but also because the teacher on the podium in front of him has already started to glance his way, with a look that clearly shows the anger of "sitting in the first row and yet you still dare to desert me".

Wu Lin, in his rapidly rising desire to survive, taps frantically, feeling that his fingers are about to take off: then brush the news, brush Twitter, brush the forum, brush the circle of friends, and don't get back to me before the end of the class!

After sending it, he shoved the phone straight into his book bag under the table without looking at it again.

Say no to watching or die.

Because once Ye Wang really goes his own way and keeps replying, he can't help but chatting with his stupid little hands whenever he sees it.

...... Either Ye Wang is toxic or WeChat is toxic!

Not far away, in another school building, Ye Wang looked at the "ultimatum" on the chat screen and was very upset.

He was most annoyed when people spoke to him in a commanding tone.

But, the mood is arrogant and the body is honest.

Turn off WeChat, open the school forum, and swipe.

Until the end of the class, Ye Wang had almost replied to all the recent posts in the forum.

There were only two classes in their class tonight. Sijie Yuan from the front row packed her bag and came over to ask, "Going back to the dormitory together?"

"No." Ye Wang got up and swung his book bag over his shoulder.

Sijie Yuan, seeing that this was another search for someone, casually asked, " Wu Lin also has two classes today?"

Ye Wang said, "Four sections."

Sijie Yuan froze, "So it's only ten o'clock, where are you going?"

It'll be midnight when Wu Lin's fourth period class ends.

Ye Wang said indifferently, "Take a look around."

...... start hanging around the neighborhood two hours early just to wait for someone?

"Alright, I'll go back then." Sijie Yuan patted him on the shoulder, then left the classroom with three steps back. Every time he turned back, those eyes were looking up to the Saint of Love.

The wind, at ten o'clock at night, had begun to cool.

Wu Lin is located in the school building on the side of the path, lined with peach trees, April is just right, the branches full of clusters of peach blossoms.

A row of benches under the tree, one a few meters apart.

Ye Wang lies under a tree where the peach blossoms are at their peak, his young body hidden along with the bench in the shadows of the lush foliage.

Third period just started.

Ye Wang's news and forums are all finished, and the last item left in Wu Lin's "Time Spending Method" is to brush the circle of friends.

Go to microsoft.

There were no more than twenty people in total on his friends list, and a dozen more that he had blocked from his friends.

So when Ye Wang clicked on his circle of friends again, the picture was very monotonous--

Liang Ge (9 hours ago): only two classes this afternoon hahaha [oye.jpg]

Liang Ge : (10 hours ago) The new window in the cafeteria is too good to be true! [Photo][Photo]

Sijie Yuan (yesterday): You smiled faintly, not saying anything to me. And I feel that I have waited a long time for this. --Rabindranath Tagore, The Book of Birds

Liang Ge (yesterday): Dude must get off this year, must get off!

Tan Jiang (2 days ago): [Today's Share: 100 Books You Must Read in Life]

Liang Ge (2 days ago): Do you people have to wait for a date under the dormitory building? Can you consider the feelings of single students! [angry] [angry] [angry] [angry] [anger]

Sijie Yuan (2 days ago): You will love me one day, I can wait for your love to grow up slowly. Isn't the flower you carry in your hand a seed that was planted in April and bloomed in June? --Robert Browning

Tan Jiang (2 days ago): [Reblog: Why is toughness the cornerstone of life? An introduction to the philosophy of life brought about by the awakening of wildness...]

Liang Ge ......

Liang Ge ......

Liang Ge ......

Ye Wang scrolled down for half a day, his eyes hurting from Liang Ge's noise, and only after scrolling to an unknown number of days ago did he finally see -

Wu Lin : The sound of nature, nice to hear.

Suddenly a strong wind came and blew off a few pink and white petals.

Ye Wang, in the shadow of the swaying flowers, slightly hooked the corner of his mouth.

"Aiya, you're annoying ......," the pouting female voice, ghostly came.

Ye Wang was stunned.

"One kiss, just one." Another male voice, coaxing intimately.

Ye Wang got up, noiselessly.

On the bench under the tree next door, two classmates, as if in love, were hugging and kissing each other like no one else was watching.

...... Or maybe they really didn't see anyone else over here.

Ye Wang now understands Liang Ge.

Watching this kind is a bit disturbing.

Why?

The task of the student is, of course, to learn!

Ye Wang, a justifiably double-standardized student, left the field quietly with the quiet steps of the northeast tiger.

But where to next?

Spring is coming, everything is springing back, Ye Wang looks around and always feels that every obscure corner is unreliable, and there are ambiguities there.

Without realizing it, Ye Wang wandered into the school building where Wu Lin was attending classes.

He looked up at a sliver of lighted classrooms.

When I look around, this is the only place that's decent and down to earth.

Third floor, step classroom.

Usually after one class, you have to change classrooms and go to another one, but today was an exception, as the students in the night class of Environmental Engineering, for two consecutive classes, four classes, were scheduled to be in the same staircase classroom.

So Wu Lin is still sitting in the first row.

The last two classes are Principles of Environmental Engineering, taught by a deep and elegant professor, newly appointed this semester at the Environmental institute.

The professor was looking down as he waited for his computer, which had just suddenly blue-screened, to reboot when the classroom stirred.

Wu Lin was waiting earnestly, but he heard whispers behind him--

"What class ......"

"I don't know. ......"

"Not bad looking ......"

Wu Lin turned back in confusion.

Only to see that in the last row of the classroom, at some point, there was an additional male student with a round inch head.

In the last row, and at the highest point of the ground, the student's typically feline, languid eyes glanced down faintly, as if looking down on the world.

Wu Lin: "......"

Lecture computer finally restarted successfully, the projection of the computer desktop gradually clear, the professor re-inserted the USB flash drive courseware.

Wu Lin hurriedly looked down and quickly sent a message: What are you doing here?

Ye Wang leisurely fished out his cell phone and typed, Waiting for you.

The large classroom, the first row and the last row, tweeting in isolation, leaving a classroom full of students who are still in a daze and talking to each other.

Waiting for him?

Wu Lin knew that Ye Wang had only two classes tonight, and he also knew that Ye Wang would meet him for dinner at twelve o'clock as usual, but he did not expect that Ye Wang would come to wait for him two classes earlier.

It would be a lie to say I'm not happy.

But Ye Wang did so, usually nothing, after all, ladder classroom so big, one or two more students, as long as it does not affect the classroom discipline, the teacher usually do not care.

But this lesson is different.

Wu Lin: Run.

Ye Wang raised his head at these two words and looked at Wu Lin in confusion.

Wu Lin is in a hurry.

Wu Lin: Don't ask.

Wu Lin: Run!

Wu Lin ： Unless you want to seriously study the principles of environmental engineering!

Ye Wang finally smelled a hint of unusual danger in the speed of Wu Lin's messages.

The phone was stuffed back into his pocket and he rose sharply.

"Please stay in the last row-"

Ye Wang: "......"

Late.

Wu Lin: "......"

Done.

The professor gave a modest smile, "Is this student here to observe?"

Ye Wang not bothered to glance at the first row.

Wu Lin frowned across the room and shook his head slightly: a thousand, million, don't, recognize.

Ye Wang received, "Wrong classroom."

The professor said amiably, "It's been twenty minutes since class started."

Ye Wang: "......"

Twenty minutes to get to the wrong classroom does seem a bit far-fetched.

"...... I was trying to find a classroom to study in."

Wu Lin looked sympathetically at Mr. Wang, it was hard for him to come up with this reason.

But with that said, the professor should just let it go.

Both Wu Lin and Ye Wang are optimistic.

However--

PROFESSOR: "Now that you're here, sit down and listen together, and you can also give me some comments and suggestions on my teaching."

Ye Wang : "No, I'm not a professional in this field."

PROFESSOR: "Also, the class is really more specialized."

Ye Wang : "Then I ......"

Professor: "What's your major, classmate?"

Ye Wang : "Mechanical Engineering, then I'll start with ......"

Professor: "Mechanical engineering? That's just right, actually many engineering disciplines are related."

Ye Wang : "Not ......"

Professor: "Student you don't stand so far away, come and sit down in the front, too far away to see the courseware clearly, you will miss the knowledge points, and it is not conducive to the interaction in our classroom ......"

Ye Wang: "......"

Wu Lin: "......"

All Night Class: "......"

No student who steps into a Principles of Environmental Engineering classroom gets out early before the bell rings.

Never.

Two minutes later, Ye Wang sat down in the first row.

Because Wu Lin volunteered to talk to the teacher, I was able to borrow this student to go over the textbook with me.