บท 616: Happy Birthday

Xiang Huai's eyes darkened and he exuded an intimidating aura. "Who are you calling pitiful?"

The senior's words got stuck in his throat. He took a few steps back. "Xue Xi, I'm waiting to see you make a fool of yourself!"

When he saw Xiang Huai take a step toward him, he was so frightened that he turned around and ran.

After he left, the rest of the people in the library looked over and discussed in private. They felt that they were speaking very softly, but Xue Xi had good hearing and heard everything they said.

"Is it really possible to develop a light source machine?"

"I think it'll be hard. To be honest, I personally admire Sister Xi, but this thing is really too difficult."

"Our country will definitely surpass other countries in the future, but after all, there is still a huge gap between our technologies. It will indeed be very difficult to complete."