These artificial ears will be a huge benefit to those who suffer injuries or who have microtia, a condition that keeps the ears from ever developing.

这些人造耳朵对那些遭受过耳朵伤害或者耳朵停滞发育即患有小耳畸形的人来讲是巨大的福音。

4.Noses That Smell Diseases

4.闻疾病的鼻子

Scientists may be working hard at making organs that match the body's capabilities, but why stop there?

科学家们在赋予人体器官原本能力方面投入很深，但是为何要仅限于此呢？

When researchers at the University of Illinois set out to create a device that identifies chemicals by their scent, they didn't settle for the sensitivity of the human nose. Instead, they created an artificial nose that uses the smell of bacteria to identify and diagnose specific diseases.

当伊利诺伊大学的研究员着手建立一种靠嗅觉来鉴别化学物质的装置时，他们并不满足于提高人类鼻子的灵敏度。相反，他们发展出一种假鼻子，依靠对细菌的气味来鉴别和诊断某些疾病。

The result doesn't look much like a nose—it's a bottle filled with liquid nutrient that cultivates bacteria. But give the “nose” a blood sample and let it sniff for a few days, and the bottle's dots will change color to indicate what bacteria, if any, it identifies.

产品看起来并不太像一个鼻子，而是一个瓶子，装满了培养细菌的营养液体。但是给这个“鼻子”一个血液样本，让它嗅上一段时间，这个瓶子的斑点会改变颜色来表示它鉴别出的细菌种类。

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