And if you look at the actual physical characteristics on the face of this beautiful horseshoe bat, you see a lot of these characteristics are dedicated to be able to make sound and perceive it.
如果你看看蝙蝠的实体特征 看看这只漂亮菊头蝠的脸， 你会看到很多特征都有助于 它们发出声音，察觉声音。