C1089 Teach Me a Few Moves Okay

Lee Zihui excitedly brought me to the R & D department. He pointed at the messy pile of circuit boards on the table. "Last week, I worked with some experts in circuit design and finally completed the circuit design …"

With that, he opened up the messy pile of circuit boards and found a square one. It was about six centimeters long and three centimeters wide