C718

"Dongdong, do you know what this is?" Ding Qian took out a small silver ball from his pocket with a thin chain tied to it.

The little boy took a closer look, moved his lips and whispered a single word, "Ball."

"Yes, it's a ball." Ding Qian raised the chain and hung the ball upright.

The boy stared at the ball, lost in thought.

"Let's play a game together. Look