Small Words (2): 你到底有几根手指？

thumb→the short, thick finger on the side of your hand that makes it possible to hold and pick things up easily.

short,thick与long,slender对比鲜明，

finger一般指one other than thumb，所以是eight fingers，

digit→a finger,thumb,or toe.

toe→any of the five separate parts at the end of the foot.

大脚趾即big toe = largest toe，