무언가를 듣는다고 할 때 주로 싸이렌 소리나 신호소리를 듣는 능력을 얘기하지는 않죠. 이런 것들이 중요하긴 하지만
When we think about why we hear, we don't often think about the ability to hear an alarm or a siren, although clearly that's an important thing.