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1.The child has a rare condition called polydactylism.
这个孩子患有一种叫做多趾畸形的罕见病。
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2. Polydactylism is a condition that affects the development of the fingers and toes.
多趾畸形是一种影响手指和脚趾发育的状况。
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3.Many people with polydactylism have difficulty using their hands and feet.
许多多趾畸形患者使用手和脚有困难。