Glass is a kind of transparent, breathless, and hardness of the crystal, the so-called transparent here, can only say that after the impurities are removed, usually the glass will have some variegation.

It is formed by the melting of silica and other chemicals (the main raw materials are: soda ash, limestone, quartz). It is a silicate non-metallic material that forms a continuous network structure during melting, and the viscosity gradually increases and hardens during the cooling process, resulting in its crystallization.

The production of glass can be said to be not very complicated, but for the layman, it is difficult, and Zhang Guangyi is one of them.

His major is mathematics teacher, and he is also a third-rate university study, almost a mixed degree, for chemistry and other reaction formulas, after so many years, I have long been returned to the chemistry teacher in high school, and I have almost forgotten it.

It's just that I still have a vague impression that glass seems to be made of something that reacts with something at a high temperature.

At this point, he only knew it by reading some novels that traveled through ancient times, and in other lives, he still remembered these things.

'Really, it's a dog. ’

The plan was just conceived, and it was nipped in the bud, and the taste of this can be extremely uncomfortable.

If he knew that he would be able to cross over, he would definitely read more books such as "The Secret Book of Travel" and "How Steel is Made", and write down the manufacture of glass, paper, perfume and other things.

It's a pity that all this is just a fantasy, he doesn't know that he will cross, ordinary people are running around and working hard for life, who will have nothing to do to see these things.

'How can someone else know everything?' Do they know they're going to cross? ’

Thinking that others would know everything as soon as they crossed over, that they were proficient in piano, chess, calligraphy and painting, and that the manufacturing process was omnipotent, Zhang Guangyi couldn't help but feel the world's deep malice towards him.

Originally, he still knew how to make simple soap, but this thing had already been invented by a pig killer by accident, which completely ruined his way to fortune.

As for the manufacture of special soaps, Zhang Guangyi does not.

"Hey!"

With a sigh, he retracted his thoughts and moved his gaze to the door of the grocery store again, he wanted to see what kind of fame this ordinary glass in his previous life would make here.

On the steps, Wang Xiaobao was like a proud rooster, standing on the steps with his head held high, looking at the pedestrians below.

At the same time, he carefully rotated the tea tray so that everyone on the street could see the glass bottle in the tea tray.

When he felt that it was about the same, Wang Xiaobao carefully closed the glass bottle with silk and put it on the counter, regardless of the sound of asking for more glances below.

"Everyone, this is the treasure that our store got from the Western Regions~ The glass bottle, everyone has seen the glass bottle, those, it's not good-looking, how can there be this glass bottle in my hand is crystal clear, without any variegated ......."

Wang Xiaobao spoke about the glass bottle with a high spirit, and on the street, except for Zhang Guangyi, who lowered his head, everyone else had a focused expression on their faces, listening to Wang Xiaobao's introduction.

The reason why Zhang Guangyi didn't look at Wang Xiaobao was because there was a prompt and a task prompt in the system.

Just when Wang Xiaobao introduced the glass bottle in his hand, a pleasant jingle sounded in his mind, and he had heard it many times and knew that this was the prompt sound of the system.

At that moment, he looked at the lower left corner of the retina, moving the system screen to the center and zooming in.

Sure enough, there were some changes on the system screen, a gray panel blocked the map from meeting, and there was a lot of text on the gray panel.

【Quest Hint!】 】

[An accident is detected around the host, and a sudden task is automatically generated!] 】

[Mission: Save Wang Xiaobao!] 】

[Mission content: The appearance of the glass bottle is just a disguise, some people want to use it to lure out someone, but they didn't expect that this would make Wang Xiaobao lose his life, help Wang Xiaobao get out of danger with his life, and change his fate! ] 】

[Difficulty: Four stars!] 】

[Reward: XP +2000, System Coin +600.] 】

[Failure Penalty: 90% chance of being implicated and being hunted down.] 】

【Accept the mission!】 】

['Yes'! 'No'! 】

(Countdown to 257 seconds!) ）

[Hint: The difficulty of the task is divided according to the current strength of the host, and one star is defined as simple, as long as you are not careless, it is easy to complete the task; A two-star is defined as a bit ordinary, and it must take some thought and effort to complete it; Samsung defines it as difficult, life-threatening, and must be cautious; The definition of four stars is very difficult, every step is frightening, and the slightest carelessness is like falling into an abyss, broken bones; Five-star is defined as the ultimate difficulty mission, where life and death are the difference between life and death. 】

'Is this a system task?!' Conspiracy?! ’

Zhang Guangyi did not understand and immediately chose to accept the task, but carefully read the content on the panel twice.

'There was an accident around us, which means it could happen soon, and according to the countdown, it should be in 4 minutes! And judging from the prompt, if there is no help from external forces, this Wang Xiaobao should be in a catastrophe, and he will definitely die! ’

Zhang Guangyi looked at the pedestrians around him with the peripheral vision of his eyes, and did not find anything abnormal.

'Hey! ’

Glancing at Wang Xiaobao apologetically, Zhang Guangyi sighed, chose no, and refused the mission.

'I'm sorry, there's nothing I can do. ’

Zhang Guangyi is still a little self-aware, this mission system is written with four stars, three stars are life-threatening, let alone four stars.

His current strength, that is, his strength is twice as great as that of ordinary people, but he doesn't know anything else, and force is not determined by strength, and there are too many factors to consider.

Zhang Guangyi is not a virgin, there is no need to take this risk for a stranger, the gains outweigh the losses.

Is this the law of the world? The law of the jungle eats the strong, and ordinary people can't even master their own hits! ’

Secretly clenched his fists, Zhang Guangyi looked straight at Wang Xiaobao who was talking on the steps, gritted his teeth, and once again realized the fragility and unbearableness of life.

'My life is in my own hands!' ’

In the blink of an eye, Wang Xiaoer finished talking about all the unusual places of this glass bottle.

Licking his dry lips, Wang Xiaobao looked at the crowd on the street with an excited face, he liked this feeling, this feeling of being watched by everyone.

"Ladies and gentlemen, this is unique from a flawless glass bottle, it only needs to be ......."

Before Wang Xiaoer could finish speaking, a man wearing a gray short-sleeved suit with his head bowed seemed to be pushed by a person on the street, and the pace of the whole person staggered towards the door of the grocery store, his cuffs flashing with cold light.

"The guest officer is fine."

Seeing that someone was about to fall, Wang Xiaobao subconsciously reached out to help him.

"Be careful!"

Just when Wang Xiaobao was about to support him, there was a warning sound on the street.