"What were you thinking the last couple of days?" that night while having dinner, Wang Yao's mother asked. She realized that Wang Yao looked like he was in a daze, even while eating.
"Nothing much, just thinking about a patient's illness," Wang Yao smiled.
"Patient? What kind of patient?"
"A child," Wang Yao quipped.
"Is the illness serious?"
"It's alright. Hey, don't worry so much!" Wang Yao smiled at his mother.
"Okay, don't forget, you still don't have a medical qualification certificate; don't let these people unreasonably depend on you," his mother kindly reminded him.
"I know."
