เสียงที่ใช้ร่วมกัน

just think about your body right now. You are sitting, listening, maybe blinking, breathing… all at the same time. You are not consciously controlling every action, but everything is still happening properly. That’s because your body has a system that manages and connects all activities. Control means deciding what action to take, and coordination means making sure all body parts work together smoothly. It’s like a group project—if one person doesn’t cooperate, the whole task gets disturbed.