Yes, in less than a second, Senior Cao finished tying the knot. In her heart, Xie Wanying could only say that this lightning-fast speed clearly showed that Senior Cao treated knot tying as if he were gobbling down meat with a bite.
That's how it is with surgeons, when they've tied knots over and over, the brain doesn't even need to think about it, their hands just move on their own.
This is what you call a master surgeon.
Having tied the knot, Cao Yong felt that something was off. It had been too long since he'd taught clinically, and he had forgotten how to teach. He turned to his junior sister and said, "I'll demonstrate it in slow motion for you."