C670 Poisonous gas

"Wu Dong, do you really have poison gas in your folder?"

Liu Xin Yi asked Wu Dong this question for the third time.

Wu Dong laughed bitterly, he had originally been looking at Elder Tian's lecture on stage, but now that Liu Xin Yi asked again and again, he did not even have the heart to look at it.

Just a moment ago, after taking down Liu Zhan