C773 Clang clang frozen to death

Hearing my question, Meng Cai closed his eyes and started to ponder. I kept smoking and didn't disturb him.

After a long while, Meng Cai opened her eyes and slowly shook her head at me without saying anything.

My heart sank. This showed that with Meng Cai's shrewdness and profoundness, he was unable to tell which of the four people was wrong, or we misjudged him