monodactyl

例句：

1. 1.The monodactyl hand is unique to this species of bird.
   这种鸟的单指手是独一无二的。
2. 2. She has a single monodactyl foot, which makes her walk differently.
   她的一只脚只有一个指头，所以走路方式与众不同。
3. 3.In some cultures, the monodactyl hand is seen as a sign of good luck.
   在某些文化中，单指手被视为好运的象征。