C510 mutation

There was a long queue behind us. Leaning on Hong'er's shoulder, I still felt a little dizzy. I simply closed my eyes, but didn't fall asleep. I followed the line and moved forward bit by bit.

"Have you heard?" At this moment, a man in the line next to me spoke up, gossiping with the people beside him.

"What's wrong?" Someone echoed.

"I heard that two days ago