这张图片来自费城穆特博物馆的收藏，展示一位无肢畸形的小姑娘，这一种疾病的特点是四肢未充分发育。

This image, from a collection at Philadelphia's Mutter Museum, shows a young girl with amelia, a condition marked by undeveloped limbs.

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在人们出生前注射一种特殊的疫苗，以防止他们患上可怕的疾病，这一直是科学界的梦想。

It's long been a scientific dream: to give people a special vaccine before birth to prevent them from getting terrible illnesses.

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这是一种对于癌症这一疾病的恐惧。

This is a fear of cancer - the disease.

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This is mostly a disease that would occur in children.

这是一种主要发生于儿童的严重疾病

耶鲁公开课 - 生物医学工程探索课程节选