Place it at the point where the teacher is first noticed, before the classroom reaction begins, then follow it with Enemy Spotted as the class is caught, and close with Okay Let's Go once the moment passes and the lesson resumes.
关于此声音
This is a short spoken clip built around the word profe, the Spanish word for teacher, lasting just under seven seconds. It lands as a light, familiar classroom callout, the kind of quick, teasing shout that makes students smile because it sounds like someone calling for the teacher at exactly the wrong moment.