But Bruce could guess that the person on the phone must be an official.
Bruce knew that the government had protected the related information of many technical personnel. Even if others made a mistake, they couldn't get through to him.
They didn't want anyone to interrupt Bruce's work.
After thinking for a while, Bruce answered the phone.
"This is Bruce. Who are you?"
Hearing Bruce's voice, the leader of the transportation department smiled and said, "Professor Bruce, I'm sorry to disturb you during lunchtime. I'm from the transportation department. I'm really sorry."
Bruce said with a big smile on his face.
"Ha-ha, you're welcome. Is there anything I can do?"
Bruce knew that they must have something important to tell him, so he brought it to the point.
In fact, the director of the transportation department was more anxious than Bruce. The situation in the city was getting worse and worse. Every minute delay would cause a huge economic loss.