Zhang Huayao and his team, keeping a close eye on her actions, immediately noticed her subtle adjustment and made a timely judgment:
"The cotton ball might be stuck to the tracheal wall, she thinks it can't be extracted."
"Forcing it might cause bleeding."
"It's not necessarily just the cotton sticking to the tracheal wall. Could there be other foreign objects present?"
This question from Cao Yong made the other two scratch their heads because there was indeed such a possibility.
Xie Wanying heard the teacher and senior talking and thought to herself, Senior Cao has sharp eyes, he can even figure out what her brain is thinking.
