arachodactyly

例句：

1. 1. This patient has arachnodactyly, which can cause difficulty in walking and running.
   这名患者有长脚畸形，这可能导致行走和跑步困难。
2. 2.The child with arachnodactyly often has difficulty climbing stairs.
   有长脚畸形的儿童通常爬楼梯有困难。
3. 3. Arachnodactyly is a rare condition that affects the development of the feet and legs.
   长脚畸形是一种罕见的状况，影响脚和腿的发展。