Zhang Huayao and Fu Xinheng simultaneously glanced at Student Xie: this student is truly calm and composed.
They were starting to feel a bit suspicious about what was going on.
"Eighteen minutes," the nurse couldn't help but remind the doctors.
"Almost there, hold for about another half a minute," Xie Wanying said.
Half a minute later, the nurse turned her head towards the clock, counting the seconds. Just as she was about to remind the doctors again, Xie Wanying's voice sounded: "Withdraw."
Listening to her tone, as if lost in concentration, she seemed to be commanding her own teacher. Zhang Huayao's lips curled slightly as he slowly pulled the water balloon out of the trachea, letting it slide out as gently as possible using the airflow within the trachea. The freshly clotted wound couldn't withstand strong pulling, as it might rub and tear the wound open again.
