bird's foot

1. Four thousand physically-disabled athletes from around the world entered the Bird's Nest stadium, either on foot or in a wheelchair.
   来自世界各地的4000名残疾运动员进入北京的“鸟巢”体育馆，有的步行，有的坐着轮椅。
2. When Bird wakes up, he's too grumpy to eat, play or even fly, and instead starts stomping through the forest on foot.
   当小鸟醒来的时候，他烦躁得不想吃饭、不想玩耍，甚至不想飞行。他开始跺步穿越森林。

noun

1. the foot of a bird