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蝙蝠靠超声波引路,狗鼻子的嗅觉非常灵敏。假如,我们把它们的这种功能结合起来发明一种盲人引路器,你说该有多好啊!
Bats are guided by ultrasound, and the nose of the dog is very sensitive to smell. If we combine their functions to create a blind guide, how good would you say!