One's fingers are all thumbs.

例句：

1. 1. He is so clumsy that his thumbs are always in the way.
   他太笨了，总是把拇指挡在前面。
2. 2. The artist carefully painted each detail of her thumb.
   艺术家仔细地画了她的拇指的每一个细节。
3. 3. When she was young, she used to play with her thumbs.
   她小时候喜欢用拇指玩耍。