Professor LEO's luck is good, there is half a ping-pong ball-sized jade in the original, the grade is not high, but it has earned more than five times the purchase price, this off-campus teaching is considered a success, LEO grinned proudly at the students: "Have you seen it?" Who said that those who study geology will eat soil? ”

The students were eager to give it a try, and a small stone would cost more than $200, and even if they didn't win, they could afford to lose.

LEO, who is afraid that the world will not be chaotic, not only does not persuade them, but also keeps provoking.

Shen Ruobai shook his head helplessly: "Don't you wait to finish reading the rest of the calcite stones?" ”

LEO SLAMMED HIS FACE: "SHEN, YOU'RE REALLY BORING!" ”

It is said that a knife is poor and a knife is rich, LEO chose a total of seven or eight stones, and the one just now is actually the fifth, LEO is most confident to call them to come and see, and the remaining few can be said to be miserable......

Yan Ruyu calculated the cost in her heart with a smile, the professor spent more than a thousand dollars in this class, in addition to the hemispherical glutinous jadeite just now, he also opened a bean seed the size of a thumb knuckle, because the size and water head are average, in fact, they are not valuable.

The students' protesting eyes scraped against LEO, and he had to say, "Isn't it so that you don't have to say boring classes anymore?" ”

Shen Ruobai ruthlessly dismantled him: "Are you sure it's not because you have been notified of the new goods here?" ”

Shen Ruobai's big and small ones were also solved, and LEO was amazed at his good luck while touching the two cold light blue jadeites on his hands and was reluctant to let go.

Obviously, Shen Xuan Stone is also attentive, although the two rough stones are small, but the skin is thin, and one-third of the cut is jadeite, although the seed head is not very good, but with these two new harvests, LEO suddenly changed from a loss to a small profit.

He sighed while holding Jade, and Shen Ruobai had already asked Yan Ruyu and the other two Chinese students with a straight face: "What have you learned in this lesson?" ”

The two students said thousands of words about the texture and texture of the rough stone, and when it was Yan Ruyu's turn, they glanced at her defiantly.

Yan Ruyu is just a senior student, and she actually came to the exchange meeting with their graduate students, they have been dissatisfied, just now they deliberately finished everything they could say, and they didn't believe that she could add more!

Although they couldn't understand Chinese, the students on the LEO side were also staring at this side with bright eyes.

Is this the famous Gong Dou in China? It's amazing that they're seeing the live version?

Yan Ruyu glanced at Professor LEO with a smile, don't think she didn't hear that he had just pretended to be an academic discussion and actually told his students about the situation in a soft voice.

Want to go to the theater?

No way!

Yan Ruyu said with a smile: "Well, the academic analysis sisters have finished speaking, so I'll say something else, for example, don't be ashamed if you don't learn well?" ”

Although Shen Ruobai didn't speak, there was a hint of a smile at the corners of his eyes and eyebrows.

LEO students couldn't understand it and were impatient to wait for LEO to translate.

LEO is willing to tell the truth: "Your elementary school sister said that her senior sisters analyzed it very well! ”

The students are all human beings: "What else? ”

LEO was ashamed: "It's not that you don't know that the length of sentences in Chinese and English is different, that's all, it's gone!" ”

Yan Ruyu accepted it when she saw it, noncommittal, her eyes opened slightly, and she suddenly paused.

There was something in that pile of rough stones that attracted her.

Seeing her eyes, LEO hurriedly changed the topic: "What, do Shen's elementary school students want to try it too?" ”

Shen Ruobai's eyebrows frowned slightly, and he watched Yan Ruyu walk into the pile of stones and pick up a fist-sized stone.

"I have a friend who seems to like these and I want to bring him a souvenir."