C1569 Hospitality
Although Ao Wei shook his head to say that he couldn't answer Chen Hui's question, Chen Hui saw clearly that Ao Wei seemed to frown a little.
This meant that Ao Duo knew the specific answer to this question. However, he didn't know whether he should say it or not.
This also proved that Chen Hui's previous guess was correct. It was not convenient for Ao Ke to answer this question